Brazuca

Behind the Brazuca: NBC’s extensive research hints less “knuckle-ball” in Brazil, NASA agrees

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After our extensive research it seems as though we can at least guarantee one thing at the 2014 World Cup in Brazil… a better soccer ball to play with.

Cast your minds back to the 2010 World Cup and the debacle that was the Jabulani ball which swerved and dipped all over the place to resemble a beach ball, rather than the ball of choice for the worlds most prestigious soccer tournament.

But fear not, the Brazuca — which was unveiled by FIFA last week before the 2014 World Cup draw — won’t be a distant relative to the Jabualni. It will be, well, more normal. I’m sure goalkeepers of all 32 nations who’ve qualified are now breathing a huge sigh of relief.

For all the details on the new ball, we share with you the incredible in-depth study from Ben Popken for the Consumer News at NBC Business. Ben takes up the story as a Japanese University and NASA break down the science behind the ball, which will be kicked around to either crush or ignite the dreams of billions of soccer fans across the globe next summer.

Over to you, Ben.

The Jabulani curse is lifted.

Any knuckleballs at the 2014 World Cup should be mostly intentional, according to new independent wind tunnel results by Japanese university researchers.

The researcher’s data shows the new Adidas-designed Brazuca matchball for the 2014 World Cup is less likely to swerve at goal strike speeds, meaning there shouldn’t be a repeat of the maddeningly erratic balls at the 2010 World Cup. During those games, goalkeepers and outfield players alike accused the Jabulani matchball, with its glossier texture, asymmetrical panels, and shorter panel bonds, for voodoo shots and an early tournament goal drought.

At the University of Tsukuba in Japan, sports engineering researchers mounted soccerballs in a wind tunnel, blasted them with air, and measured what happened.

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After undergoing extensive testing in labs, the “knuckle-ball” will be much less than we experienced with the Jubulani. (NBC News)

Now, in aerodynamics, for every surface there’s an airspeed at which the air flowing over it switches from smooth to turbulent, what’s called the “critical Reynolds number,” and can lead to the sudden veering in flight known as “knuckle-ball.” But in the tests the Jabulani’s occurred at higher speeds than the mid-30’s mph seen on older balls.

In fact, it happened at 53 mph, right in the 50-60 mph range professional goal strikes and corners start at.

That could explain a few things that happened in South Africa.

This time around, those strikes should power through the knuckle-ball effect. In the wind tunnel tests, the Brazuca’s critical Reynolds number occurred at 38 mph.

Those results are more comparable to the Tango 12 ball, itself a player favorite and one of the balls on which Adidas based the design for the Brazuca.

“The asymmetry of ball panel location is one of the reasons to produce knuckling effect,” said Dr. Takeshi Asai of the University of Tsukuba’s Institute of Health and Sports Science. “Ordinarily, the asymmetry of ball panel increases, as the ball panel number decreases.”

That means the Brazuca’s six interlocking boomerang panels, fewer than the Jabulani’s eight, both of which are fewer than the classic 32 pentagon and hexagon panels, could normally pose a problem.

“However, the total distance of the panel bonds or seams of the Brazuca is longer than that of Jabulani,” said Aasai, 10.89 feet worth compared to the Jabulani’s 6.49. “Therefore, I think the strength of the knuckling effect may be slightly lower than that of Jabulani.”

A NASA researcher agrees.

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Click to enlarge: Here’s the findings which shows how the Brazuca will perform (NBC News)

Rabi Mehta, Branch Chief at NASA Ames Research Center and an aerodynamics expert who previously evaluated the Jabulani, has examined close up photos of the new ball. He thinks the Brazuca will gain stability over the Jabulani from its longer seams, identical interlocking panels, and a surface that features a slightly raised texture similar to a basketball’s.

“My theory is that the effective roughness compared to the previous ball is increased, which means the speed at which it knuckles is lower,” said Mehta.

That’s good news for Adidas, which has spent years making sure the Brazuca isn’t Jabulani part 2. They kicked the ball over and over with a robot leg and measured its flight, interviewed hundreds of professional players, a third of which were non-Adidas sponsored, and even snuck the Brazuca in as the matchball for the U20 World Cup.

“While we can’t comment on independent research, we can say that Brazuca is our most tested ball ever,” said Adidas spokeswoman Lauren Lamkin. “We conducted two-and-a-half years of testing in 10 countries across three continents involving more than 600 players and 26 teams to ensure that Brazuca exceeds all performance standards.”

However, she said, “It is correct that the seam geometry aids in flight stabilization.”

Hopefully, all this science leads to surer shots and more exciting gameplay in Brazil come this June. If not, at least it will be harder to blame the ball for it.

Watch Live: Southampton vs. Manchester City (Lineups & Live Stream)

MANCHESTER, ENGLAND - NOVEMBER 28:  Raheem Sterling of Manchester City and Victor Wanyama of Southampton compete for the ball during the Barclays Premier League match between Manchester City and Southampton at the Etihad Stadium on November 28, 2015 in Manchester, England.  (Photo by Alex Livesey/Getty Images)
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Manchester City has shuffled the deck, with five changes from last time out as Manuel Pellegrini and company travel to St. Mary’s to take on Southampton, live at 11:30 a.m. ET on NBCSN or live online at NBC Sports Live Extra.

Sergio Aguero is on the bench, while Kevin De Bruyne is not selected at all for City as Wilfried Bony is the man up top along with Kelechi Iheanacho in support. Jesus Navas is also among the substitutes, with Samir Nasri and Raheem Sterling among the starters.

WATCH LIVE: Southampton vs. Manchester City live online at NBC Sports Live Extra

David Silva is not included in the squad having suffered a hamstring injury, and while Yaya Toure has returned to fitness, he is not among those named.

For Southampton, three changes from their 4-2 win over Aston Villa dot the map, with Cuco Martina, Jordy Clasie, and Saido Mane all coming into the side. Charlie Austin is on the bench having returned from a hamstring problem, but Shane Long gets the nod to start, while Graziano Pelle does not appear.

A win for Manchester City would put them firmly in fourth at 67 points, seven clear of Manchester United with two more games to play.

LINEUPS

Southampton: Forster; Martina, Fonte, Van Dijk, Bertrand; Clasie, Wanyama, S.Davis, Tadic, Manè; Long.
Subs: Stekelenberg, Yoshida, Soares, Romeu, Ward-Prowse, Rodriguez, Austin.

Manchester City: Hart, Zabaleta, Otamendi, Mangala, Kolarov, Delph, Fernandinho, Nasri, Sterling, Iheanacho, Bony
Subs: 
Caballero, Sagna, Clichy, Demichelis, Fernando, Navas, Aguero

Manchester United 1-1 Leicester City: 10-man Leicester earns point, but must wait for the trophy

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The Foxes had a chance to hoist the trophy at the Theater of Dreams.

It wasn’t to be, but they still earned a massive point – moving their magic number to just two – as Wes Morgan‘s equalizer was enough to cancel out Anthony Martial‘s opener pick up a 1-1 draw at Old Trafford.

Manchester United held much of the early possession down in Leicester’s half of the field, and while it appeared the Foxes were suited to deal with the pressure, the Red Devils unlocked the Leicester defense just eight minutes in. A wonderful move by Antonio Valencia on the right gave him space to lift in the cross, which went over the heads of Danny Drinkwater and Danny Simpson to the feet of an unmarked Martial at the far post, who poked home with an easy finish.

[ MORE: Watch full PL match replays ]

Following the goal, United would not relent. Jesse Lingard pumped in a shot on 14 minutes after Marouane Fellaini laid off Marcus Rojo’s cross at his feet, but Kasper Schmeichel saved well at his near post.

But the Foxes would not slump to defeat so early. With a free-kick up near the penalty area conceded by Martial, Wes Morgan beat Rojo and headed home the equalizer on 17 minutes to bring it back to 1-1.

United continue to dictate the pace of the game, with Leicester happy to sit back and pick its spots. They had a big moment on the half-hour mark as Danny Simpson gave the ball away allowing Jesse Lingard to break, but the former Newcastle defender recovered and fought Lingard to the ball, allowing Schmeichel to clear the ball.

[ MORE: Latest Premier League standings ]

Leicester had a moment close to halftime, as Jefferey Schlupp’s audacious effort from a tight angle forced an acrobatic tip from de Gea, which came to Riyad Mahrez. The Player of the Year winner went one-on-one with Marcus Rojo, and the two came together and went to ground. Leicester shouted for a penalty, but referee Michael Oliver waved it off.

After the break, the Foxes played a high press and earned themselves a pair of chances off set-pieces, but couldn’t put an effort on net despite finding free headers on both. Schlupp’s blistering pace was a force on the left, and Leonardo Ulloa began to trouble the United central defenders.

[ MORE: Full lineups, stats, box score ]

The game opened up after the 70-minute mark, with both sides going for the win, but each half-chance was met with good goalkeeper or better defending. Manchester United brought on Ander Herrera for the final 15 minutes, while Leicester City countered with Marc Albrighton.

Chris Smalling hit the post inside the final 10 minutes, and things fell apart for the visitors. Leicester City lost a man when Danny Drinkwater received his second yellow card – both for drag-backs – when he pulled Martial down on the edge of the penalty area. The referee gave a free-kick, but replays showed the foul was likely inside the area.

The point for Leicester moves them to 77 points, eight above Tottenham with just two games to play, although Spurs has a game in hand, to play Chelsea on Monday. Manchester United, meanwhile, misses out an opportunity to keep pace with rivals Manchester City for the final Champions League place, four back of City who will play Southampton later today.

VIDEO: Wes Morgan equalizes for Leicester City at Old Trafford

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The pressure of winning the Premier League at Old Trafford seemed maybe too much for Leicester City, with Manchester United owning all the early possession and scoring seven minutes in.

But the Foxes have been here before, and every time have come up big.

WATCH LIVE: Manchester United vs. Leicester City live online at NBC Sports Live Extra

That’s what captain Wes Morgan did, scooting past Marcus Rojo and rising to meet a free-kick, poking it past David De Gea to level things up at 1-1 at the ground where so many have won titles before.

Should the Foxes come back to win, they would officially win the Premier League title. They can also secure the title with a draw plus dropped points by Tottenham tomorrow against Chelsea on Monday.

Swansea City 3-1 Liverpool: Young Reds bested as Swansea officially earns safety

SWANSEA, WALES - MAY 01:  Andre Ayew (L) of Swansea City celebrates scoring the opening goal with Gylfi Sigurdsson during the Barclays Premier League match between Swansea City and Liverpool at The Liberty Stadium on May 1, 2016 in Swansea, Wales.  (Photo by Steve Bardens/Getty Images)
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After defeat on Thursday in the first leg of their Europa League semifinal, the Reds looked to get back on track in league play at the Liberty Stadium, as Jurgen Klopp rotated the squad to Liverpool’s youngest ever. Instead, it was the home side celebrating as a young Reds lineup was second best in a 3-1 defeat to Swansea City.

Already more than likely to stay up, Swansea mathematically clinched Premier League safety with the three points, moving above West Brom and Bournemouth into 13th with 43 points.

The two teams began lively but produced little in the opening 10 minutes. The visitors got the first chance on 12 minutes, as Gylfi Sigurdsson had a sliding effort thanks to a wonderful touch from Andre Ayew at the top of the box, but it was saved by Danny Ward.

[ MORE: Watch full PL match replays ]

The Liverpool defense looked clunky while Swansea maintained control, but it did its job, just keeping the hosts out as the rain came pouring down. Swansea had a break in the 20th minute, but Ayew’s shot was just blocked Dejan Lovren. However, the resulting corner provided a deserved breakthrough, as Ayew lost Daniel Sturridge and skied above Lovren to head home.

Jordan Ibe forced the first save of Lukasz Fabianski on 24 minutes, but it was back down the other end as Jack Cork nearly made it 2-0 but Danny Ward made a fantastic snap save to keep the low, powerful shot out.

[ MORE: Latest Premier League standings ]

The pressure continued from the hosts as Leon Britton managed to lock down the midfield and give Liverpool hardly a sniff. Just before the half-hour mark, it was Jordi Amat‘s turn to rise above Lovren on a free-kick, but he put the header just over. Moments later there was another break for Swansea, with Jefferson Montero forcing another fine save by Ward. But on 33 minutes, Ward could do nothing about an absolutely wonderful curler from Jack Cork on 33 minutes which made it 2-0.

[ MORE: Full lineups, stats, box score ]

Klopp looked to change things up, bringing on Christian Benteke at Lucas at halftime, and the changes worked. The Reds seemed to hold the ball much better after the break, and it paid dividends off a corner as Benteke worked himself away from Sigurdsson in the box and headed home.

It would be short-lived. Just three minutes later, with advantage placed after a foul in midfield, Montero weaved his way to the end line on the left and crossed to Ayew at the top of the box. With Sheyi Ojo and a host of other Reds unable to clear the ball effectively, Ayew poked it home past a frozen Danny Ward for a 3-1 Swansea lead.

Things only got worse for Liverpool, as Brad Smith received a second yellow card in the 76th minute after a very high boot in a 50/50 challenge with Swansea substitute Kyle Naughton.

With Swansea officially safe, Liverpool remains stuck in 7th, in danger of falling out of a European place sitting just a point above Southampton. Liverpool can still win a place in the Champions League next season by winning the Europa League, but should they fail to do that, a top 7 finish is the only way to return to European competition.