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.

source:
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.

Qatar to set up desert tent camp to house World Cup fans

Sepp Blatter, FIFA
AP Photo/Keystone/Walter Bieri, File
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DUBAI, United Arab Emirates (AP) The committee organizing the 2022 World Cup in Qatar plans to try out a “fan village” that could house up to 2,000 soccer spectators in Arabian desert tents.

The Supreme Committee for Delivery and Legacy said Tuesday it is seeking bids to develop a pilot project near the Sealine Beach resort south of the capital, Doha.

[ MORE: NCAA star’s fastest hat trick ]

It will offer different types of accommodation in 350 temporary tents and 300 permanent tents, along with big viewing screens and other entertainment options. A total of five fan villages could eventually be built.

Qatar is racing to build hotels and other infrastructure needed to host the games. Visitor accommodation in Qatar is currently dominated by higher-end hotels in Doha.

Once more, with feeling: Who could be the next England manager?

MANSFIELD, ENGLAND - JULY 19:  Steve Bruce manager of Hull City during the pre-season friendly match between Mansfield Town and Hull City at the One Call Stadium on July 19, 2016 in Mansfield, England. (Photo by Clint Hughes/Getty Images)"n
Photo by Clint Hughes/Getty Images
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It seems like mere months ago we were discussing who would take over for Roy Hodgson as the next manager of England.

That’s obviously because it was just 67 days ago that Sam Allardyce was hired as the next manager of the Three Lions, and 22 days since he oversaw what would be his only match in charge: a 1-0 win in Slovakia.

[ MORE: Ranieri laughs off England speculation ]

Now Allardyce’s mouth has engineered his exit from the job. How much has the landscape changed for managerial candidates?

Not too much. In no particular order, let’s look through some of the same names we studied this summer:

Steve Bruce — The ex-Hull City boss interviewed for the gig before Allardyce was hired. Is it as simple as going with choice No. 2?

Jurgen Klinsmann — The USMNT coach is again being listed by the oddsmakers despite the fact that England didn’t contact U.S. Soccer regarding an interview last time around. Has anything changed?

Gareth Southgate — The caretaker boss has worked with several of these players when they were U-20 and U-21 players, with his only other managerial experience coming with Middlesbrough between 2006-09.

Alan Pardew — The Palace man fancies himself for the job, that’s for sure. Would England really hire a ‘look at me’ man for such a high-profile position?

Eddie Howe — Bournemouth, and maybe Arsenal, fans won’t want to hear it, but the young manager would be a terrific choice for the job. But would he like running a team that doesn’t entail weekly game prep?

Harry Redknapp — If you’re looking for Pardew, only older and somehow even more sure of himself.

[ MORE: Dempsey out for 2016 ]

Other names on the oddmakers’ books are ex-Spain boss Vicente del Bosque, current Arsenal man Arsene Wenger, and Manuel Pellegrini (who is with Chinese club Hebei China Fortune). Leicester’s Claudio Ranieri has also been mentioned.

Allardyce’s issues really did no favors to club football in England, let alone country. The 61-year-old was hired in July, when clubs could’ve addressed their manager leaving better. Now in late September, the next England coach could wreak havoc on a PL team.

England hosts Malta on Oct. 8 in its second World Cup qualifier, before visiting Slovenia three days later.

Man City: Guardiola updates De Bruyne, Kompany injury status

MANCHESTER, ENGLAND - OCTOBER 20:  Vincent Kompany and Kevin De Bruyne of Manchester City talk during a training session at the City Football Academy on October 20, 2015 in Manchester, England.  (Photo by Alex Livesey/Getty Images)
Photo by Alex Livesey/Getty Images
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Kevin De Bruyne has been as valuable an attacker as any in the Premier League season, so his injury suffered this weekend is quite a big deal.

There were fears that Manchester City’s Belgian attacker would be gone for more than a month, but manager Pep Guardiola has quelled those concerns to an extent.

[ MORE: NCAA star’s fastest hat trick ]

De Bruyne will miss Wednesday’s UEFA Champions League match against Celtic, which shouldn’t bother the club too much, though his absence Sunday against Tottenham Hotspur could be felt more keenly.

Guardiola said that both De Bruyne and his Belgian teammate, Vincent Kompany, should be back in two to three weeks time. In De Bruyne’s case, Guardiola’s specifically mentioned after the international break. That puts him in line for an Oct. 15 trip to Everton.

The manager also related that he’s excited for his first trip to Celtic Park, as he’s not been to Glasgow to face Celtic in his career.

From ManCity.com:

“Everyone talks to me about the atmosphere, I’m looking forward to playing here. I know how strong they are here. I spoke with my old players, and they have said this is a special environment.”

Kickoff from Scotland is 2:45 p.m. ET.

Champions League preview: Arsenal match sees Xhaka vs. Xhaka; Man City hosts Celtic

ST ALBANS, ENGLAND - SEPTEMBER 27:  Manager Arsene Wenger of Arsenal talks to Granit Xhaka during an Arsenal training session ahead of the Champions League Group A match between Arsenal and Basel at London Colney on September 27, 2016 in St Albans, England.  (Photo by Mike Hewitt/Getty Images)
Photo by Mike Hewitt/Getty Images
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There are some absolute beauties on tap for Wednesday in the UEFA Champions League, with two Premier League clubs in play and a pair of matches pitting top teams from Germany and Spain.

[ MORE: UCL Tuesday roundup ]

All Wednesday matches kick off at 2:45 p.m. ET.

Celtic vs. Manchester City

Having been hammered 7-0 at home by Barcelona, Celtic’s “reprieve” is a trip to face Pep Guardiola and Manchester City. Brendan Rodgers will need to pull every trick out of his hat to avoid another blowout, as City had little trouble in dispatching a solid Borussia Monchengladbach side 4-0.

Arsenal vs. FC Basel

Both Group A matches were 1-1 draws to open the stage, though few expect draws on day 2. That’s because giants Arsenal and Paris Saint-Germain move onto perceived lesser lights in Basel and Ludogorets Razgrad.

The Gunners are flying, having gotten their toughest fixture out of the way in a 1-1 draw at PSG. Arsene Wenger‘s crew is fresh off a 3-0 thumping of Chelsea, and will be aware of Basel’s best: Serey Die, Birkir Bjarnason, and Taulant Xhaka, brother of Arsenal’s Granit. That’s right… all the Xhakas.

Atletico Madrid vs. Bayern Munich

A road goal led Diego Simeone’s Atleti past Bayern in last year’s UCL semifinal, and the Bavarians will hope for a better fate under new boss Carlo Ancelotti.

Borussia Monchengladbach vs. Barcelona

Man, this group. A very good Gladbach side will have to rebound from a 4-0 loss to Man City by hosting Barcelona. The good news for the Germans is that Barcelona will be without Leo Messi, though that mattered little in Barca’s 5-0 win in La Liga play this weekend.

Elsewhere
Ludogorets Razgrad vs. Paris Saint-Germain
Napoli vs. Benfica
Besiktas vs. Dynamo Kyiv
FC Rostov vs. PSV Eindhoven