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.

Lippi leads China over SKorea 1-0 in World Cup qualifier

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SEOUL, South Korea (AP) Marcello Lippi earned his biggest victory since taking over as coach of China’s national soccer team, leading his squad to a 1-0 victory over South Korea on Thursday in a World Cup qualifier.

[ MORE: Shorthanded USMNT hosts Honduras as WCQ resumes ]

The coach, who led his native Italy to the World Cup title in 2006, was hired by China in October.

Yu Dabao scored the lone goal at Helong Stadium in Changsha with a header in the 34th minute, giving China only its second victory over South Korea in 32 matches.

China spent much of the second half defending with the visitors piling on the pressure. Ki Seung-yeung and Ji Dong-won both went close for South Korea but could not find a way past China goalkeeper Zeng Cheng.

South Korea has 10 points from six matches in Group A and is still on course to qualify for the World Cup in Russia. China, which last qualified for the World Cup in 2002, has five points.

Only the top two teams from the six-nation group qualify automatically. The third-place team will head to the playoffs.

CONMEBOL wrap: Brazil routs Uruguay, Messi guides Argentina past Chile

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A roundup of Thursday’s action from around CONMEBOL World Cup qualifying…

[ MORE: USMNT looks to build momentum against Honduras in WCQ ]

Paulinho‘s hat-trick helped bring Brazil back from an early deficit as the Selecao topped Uruguay, 4-1. Edinson Cavani put the hosts ahead after nine minutes from the penalty spot, but it was Paulinho that answered 10 minutes later for his first of the night. Neymar also tallied for the Brazilians, who continue to lead CONMEBOL qualifying with 30 points.

Lionel Messi scored in the first half to help lift Argentina over Chile, 1-0. The Barcelona attacker scored after 16 minutes when Angel di Maria was taken down inside the Chilean area by José Fuenzalida. Chile was held to just one shot on target throughout, and the loss leaves the reigning Copa America winners on the outside looking in at the top five.

James Rodriguez rescued Colombia on Thursday as the Real Madrid winger capitalized off of his penalty-kick rebound to give Los Cafeteros a 1-0 win over Bolivia. Goalkeeper Carlos Lampe did his best to preserve a draw for the visitors, recording six saves on the afternoon, however, it wasn’t enough to tame Colombia.

Meanwhile, Paraguay knocked off Ecuador, 2-1, behind goals from Bruno Valdez and Junior Alonso. The visitors pulled a goal back in the 70th minute when Felipe Caicedo converted from the penalty spot, but it wasn’t enough for Ecuador.

Peru battled back with two second-half goals to preserve a 2-2 draw against Venezuela on the road. The hosts got out to a 2-0 advantage before halftime when Mikel Villanueva and Romulu Otero scored for Venezuela, however, the Peruvians struck back in the second stanza to knick a point. Andre Carrillo and Paolo Guerrero scored in the 46th and 64th minutes, respectively, for Peru.


Thursday’s results

Colombia 1-0 Bolivia
Paraguay 2-1 Ecuador
Uruguay 1-4 Brazil
Argentina 1-0 Chile
Venezuela 2-2 Peru


Updated CONMEBOL table

  1. Brazil — 9-3-1 — 30 pts.
  2. Uruguay — 7-2-4 — 23 pts.
  3. Argentina — 6-4-3 — 22 pts.
  4. Colombia — 6-3-4 — 21 pts.
  5. Ecuador — 6-2-4 — 20 pts.
  6. Chile — 6-2-5 — 20 pts.
  7. Paraguay — 5-3-5 — 18 pts.
  8. Peru — 4-3-6 — 15 pts.
  9. Bolivia — 2-1-9 — 7 pts.
  10. Venezuela — 1-3-9 — 6 pts.

Ex-Disney CEO Eisner eyes English soccer club Portsmouth

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PORTSMOUTH, England (AP) Michael Eisner, the former chief executive of The Walt Disney Co., is in talks to buy English soccer club Portsmouth.

The fourth-tier club says it has entered into a 70-day exclusivity agreement with Eisner for takeover talks to take place.

Eisner wrote on Twitter: “Exciting times! Looking forward to coming over and meeting you all. Good luck against Newport County on Saturday!!”

Portsmouth, which is based on the south coast, spent beyond its means in the pursuit of glory. The team endured financial turmoil in the years following its 2008 FA Cup win, sinking from the Premier League to the fourth tier.

After entering bankruptcy protection, Portsmouth was rescued by the fans through a trust in 2013.

CONCACAF: USMNT, Trinidad & Tobago seek first points of Hexagonal

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Through two rounds of play in the Hexagonal, everything has gone according to plan for Mexico and Costa Rica.

Not so much though for the U.S. Men’s National Team.

[ MORE: Shorthanded USMNT hosts Honduras as WCQ resumes ]

While Los Ticos and El Tri currently sit in the top two positions of the final round of CONCACAF World Cup qualifying, the U.S. is left at the bottom and faces a difficult match against Honduras when play resumes on Friday night.

[ MORE: Five questions for USMNT ahead of Honduras match ]

Mexico and Costa Rica will face off at the Estadio Azteca in the second of Friday’s three slated qualifiers, and while both nations surely expect to reach the World Cup in Russia, both CONCACAF heavyweights have the opportunity to put their stamp on the group.

For Costa Rica, a victory could potentially open up a five-point gap over El Tri, while a win for Mexico would bring Juan Carlos Osorio’s side the opportunity leap over their Central American foes.

Friday’s action will kick off at 7 p.m. though when third place Panama travels to Trinidad & Tobago, who seeks its first points of the Hex. Trinidad will be led by captain Kenwyne Jones of Atlanta United as well as Minnesota United midfielder Kevin Molino, with the duo scoring a combined 39 international goals for the Soca Warriors.

Below is the schedule and current table ahead of Friday’s CONCACAF matches as the region turns its attention to Matchday 3 of the Hexagonal.


Trinidad & Tobago vs. Panama — 7 p.m. ET

Mexico vs. Costa Rica — 9:50 p.m. ET

USMNT vs. Honduras — 10:30 p.m. ET (PREVIEW)


1. Costa Rica — 2-0-0 — 6 pts.
2. Mexico — 1-1-0 — 4 pts.
3. Panama — 1-1-0 — 4 pts.
4. Honduras — 1-0-1 — 3 pts.
5. Trinidad & Tobago — 0-0-2 — 0 pts.
6. USMNT — 0-0-2 — 0 pts.