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.

MLS: NYCFC beat TFC in new coach Torrent’s debut

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NEW YORK (AP) — Jo Inge Berget scored twice and coach Domenec Torrent celebrated his New York City FC debut with a 2-1 victory over Toronto FC on Sunday.

Berget made it 2-1 in the 68th minute, following Maximiliano Moralez’s direct pass up the right channel and slotting it home.

NYCFC (9-3-4) tied it at 1 in the 51st minute on Berget’s back heel from the top of the 6-yard box.

Víctor Vazquez opened the scoring for Toronto (4-8-3) in the 37th minute. Vasquez outran his defender on Auro’s long ball up the right side and sent a chip shot over the onrushing goalkeeper.

NYCFC’s David Villa left the game in the 28th minute with a non-contact injury.

Torrent replaced Patrick Vieira in New York shortly after Vieira’s departure for OGC Nice was officially confirmed. Torrent had been the right-hand man to Pep Guardiola for the last 11 years, most recently at Manchester City.

WATCH: World Cup, Day 12 — Time to settle Groups A & B

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Day 12 of the 2018 World Cup is up next, on Monday, and with it begins the final round of group games to decide the 16 teams headed to the knockout rounds. For the next four days, we’ll be treated to four games each day.

Also, the end of 8 a.m. ET kickoffs. Hooray for sleeping in.

[ SCENARIOS: Who needs what, to finish where, in final round of group games ]

First up, the conclusion of Group A, where both the hosts, Russia, and Uruguay have already advanced with wins in their first two games. Now, the two meet in the southwestern city of Samara to determine who’ll go through to the round of 16 as the group winners, and who’ll be the runners-up. Most likely awaiting either of them will be Spain and Portugal, pending the order in which they finish in Group B.

[ MORE: Latest 2018 World Cup news ]

Speaking of Group B, Spain will finish group play against fourth-place and points-less Morocco, while Portugal have a tricky meeting with third-place Iran, who sit just a point behind the reigning European champions. The winner of Group B will face the runners-up of Group A, and vice versa.

Below is Monday’s schedule in full.

Click here for live and on demand coverage of the World Cup online and via the NBC Sports App.


2018 World Cup schedule – Monday, June 25

Group A
Uruguay vs. Russia: Samara, 10 a.m. ET – LIVE COVERAGE
Saudi Arabia vs. Egypt: Volgograd, 10 a.m. ET – LIVE COVERAGE

Group B
Spain vs. Morocco: Kaliningrad, 2 p.m. ET – LIVE COVERAGE
Iran vs. Portugal: Saransk, 2 p.m. ET – LIVE COVERAGE

Transfer rumor roundup: Emery raiding Sevilla; Wilshere’s suitor(s)

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Unai Emery has reportedly been in contact with at least one former player, Ever Banega, in an attempt to convince the Argentine midfielder to join him at Arsenal.

[ MORE: Latest transfer news

Banega, who’ll turn 30 on Friday, played two seasons under Emery at Sevilla — where they won back-to-back Europa League titles (Banega was only at the club for the second and third of three straight from 2013-2016).

With Banega reportedly on the fence about whether or not to leave Sevilla again — he only just returned last summer after one season at Inter Milan — Emery is said to have made a personal call after Arsenal’s bid of roughly $23 million triggered the release clause in Banega’s contract. Sevilla will join Arsenal in the Europa League next season after finishing seventh in La Liga.

[ MORE: Latest 2018 World Cup news ] 

Jack Wilshere announced last week that he will leave Arsenal this summer — thus opening up the handful of games for which he was healthy and fit to play each season, perhaps for Banega — which leads us nicely to the final bit of transfer talk for Sunday: West Ham are interested in the 26-year-old, but are reportedly only willing to offer him a one-year contract.

The Hammers’ hesitancy is, of course, a response to his years-long battle with injuries — he’s made just 66 appearances over the last four PL seasons (three with Arsenal, one on loan to Bournemouth).

Two other clubs to keep an eye on, as they’ve reportedly indicated interest in Wilshere and/or been in contact already: Everton and Juventus.

Durmaz condemns Sweden fans’ racist abuse after World Cup loss

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KRASNODAR, Russia (AP) — Sweden midfielder Jimmy Durmaz says the racist abuse aimed at him over social media following the 2-1 loss to Germany at the World Cup has been “completely unacceptable.”

[ SCENARIOS: Who needs what, to finish where, in final round of group games ]

After coming on as a substitute, Durmaz gave away the free kick that led to Toni Kroos curling in an injury-time winner in Saturday’s group game. Durmaz has since been subjected to online abuse, including threats to his family.

Before a training session on Sunday, Durmaz — standing in front of the rest of the Sweden squad and beside coach Janne Andersson — read out a statement to the media from a mobile phone.

“When you threaten me, when you call me ‘Arab devil,’ ‘terrorist,’ ‘Taliban,’ then you have gone far beyond the limit,” Durmaz said in the statement, which was published on the Swedish Football Association’s website.

“And even worse, when you go after my family, my children, threaten them. Who does such a thing? It is completely unacceptable.”

Durmaz was born in Sweden to Assyrian parents who emigrated from Turkey.

[ MORE: Latest 2018 World Cup news ] 

“I am Swedish and I am proud to play in the Swedish national team. That’s the biggest thing you can do as a football player,” he said in the statement. “I will never let any racists destroy that pride. We must all stand against all forms of racism.”

The Swedish FA has reported the abuse toward Durmaz to police.

“We do not tolerate a player being exposed to threats and violations,” said Hakan Sjostrand, secretary general of the Swedish FA. “It is unpleasant and very upsetting to see the treatment that Jimmy Durmaz has suffered. Completely unacceptable.”

The loss to Germany left Sweden tied on three points with its opponent. Both countries are three points behind Mexico with one game left. Sweden plays Mexico in Yekaterinburg on Wednesday, with Germany taking on South Korea at the same time.