The ball was also used as the match ball of 2009 FIFA Club World Cup in the United Arab Emirates, and a special version of the ball, the Jabulani Angola, was the match ball of the 2010 African Cup of Nations. This ball was also used in the 2009-10 Bundesliga, the 2010 Clausura Tournament of Argentina as well as the 2010 MLS season in the USA and Canada in the league's colors of blue and green.
Design
The ball is constructed using a new design, consisting of eight (down from 14 in the last World Cup) thermally bonded, three-dimensional panels. These are spherically molded from ethylene-vinyl acetate (EVA) and thermoplastic polyurethanes (TPU). The surface of the ball is textured with grooves, a technology developed by Adidas called Grip′n′Groove[1] that are intended to improve the ball's aerodynamics. The design has received considerable academic input, being developed in partnership with researchers from Loughborough University, United Kingdom.[2]Technical specification
| FIFA Approved standard[3] | Jabulani measurements[3] | |
|---|---|---|
| Circumference | 68.5–69.5 cm | 69.0 ± 0.2 cm |
| Diameter | ≤ 1.5% difference | ≤ 1.0% difference |
| Water absorption | ≤ 10% weight increase | ~ 0% weight increase |
| Weight | 420 - 445 g | 440 ± 0.2 g |
| Rebound test | ≤ 10 cm | ≤ 6 cm |
| Loss of pressure | ≤ 20% | ≤ 10% |
Colouring
The ball has four triangular design elements on a white background. Eleven different colours are used, representing the eleven players in a football team, the eleven official languages of South Africa, and the eleven South African communities.[4] The Jabulani Angola, used at the 2010 African Cup of Nations in Angola, was coloured to represent the yellow, red, and black of the host nation's flag.[5] For the final game, a special match ball will be used with gold panels.Manufacturing
The balls are made in China, using natural Kerala latex[6] bladders from India, thermoplastic polyurethane-elastomer from Taiwan, ethylene vinyl acetate, isotropic polyester/cotton fabric, glue, and ink from China.[7] The retail price is ~ US$110[8]World Cup Final ball
This is the second World Cup Final ball to be produced, the other being the +Teamgeist Berlin for the 2006 FIFA World Cup.
Reception
 | Wikiquote has a collection of quotations related to: Adidas Jabulani |
Criticism
As with the Adidas Fevernova and Adidas Teamgeist at the two previous tournaments, the ball has received pre-tournament criticism.[9] Brazil goalkeeper Júlio César compared it to a "supermarket" ball that favored strikers and worked against goalkeepers.[10] Other similar complaints came from Giampaolo Pazzini,[11] Claudio Bravo[12] and Iker Casillas.[13] Italian keeper Gianluigi Buffon said, "it is very sad that a competition so important as the world championship will be played with such an inadequate ball."[14] whilst Brazilian striker Luís Fabiano called the ball "supernatural", as it unpredictably changed direction when travelling through the air.[15] Brazilian striker Robinho stated, "for sure the guy who designed this ball never played football. But there is nothing we can do, we have to play with it."[16] Joe Hart of England, after training with the ball for a number of days, said the "balls have been doing anything but staying in my gloves.".[17] He did, however, describe the ball as "good fun" to use, even though it is hard work for goalkeepers to cope with.[18] English goalkeeper David James said that "the ball is dreadful. It's horrible, but it's horrible for everyone."[19] It was suggested the ball behaved "completely different" at altitude by England coach Fabio Capello.[20] Denmark coach Morten Olsen after their 1-0 friendly defeat at the hands of Australia said: "We played with an impossible ball and we need to get used to it".[21] Argentina striker Lionel Messi stated, "The ball is very complicated for the goalkeepers and for us [strikers]."[22] Argentinian coach Diego Maradona said "We won't see any long passes in this world cup because the ball doesn't fly straight"[23]American Clint Dempsey was more favorable. He said that "if you just hit it solid, you can get a good knuckle on the ball (...) you've just got to pay a little bit more, you know, attention when you pass the ball sometimes."[24]
It was suggested by The Guardian on 16 June 2010 that the Jabulani ball may be responsible for the goal drought in the first round of the tournament. The Guardian mentioned the FIFA representative, who was queried daily for his opinion on the goal drought, as saying it was probably too early to make a definitive judgment, though it would be hard to deny that the first round was more cagey and defensively minded than usual. Owen Gibson of The Guardian suggested that a lack of confidence in how the ball would travel could be affecting the number of shots taken.[25] However, following Portugal's 7-0 defeat of North Korea in the second round of the group stage, Portugal's coach Carlos Queiroz said, "We love the ball."[26]
Response from Adidas
A number of Adidas-sponsored[27][28][29][30] players have responded favourably to the ball. Alvaro Arbeloa, commented that "it's round, like always." Brazilian midfielder Kaká said, "For me, contact with the ball is all-important, and that's just great with this ball."[31] Czech goalkeeper Petr Cech had several positive comments about the ball, saying it had good visibility due to the colour pattern, that felt good to handle, and when kicked it had good control.[32] English midfielder Frank Lampard called it "A very strong ball, true to hit."[33] German midfielder Michael Ballack said it was "Fantastic, the ball does exactly what I want it to."[33]Adidas has said that the ball had been used since January 2010, and that most feedback from players had been positive. A spokesperson said the company was "surprised" by the negative reaction to the ball, and highlighted that the frequent pre-tournament criticism a new ball receives inevitably dies down as the tournament proceeds.[34]
Adelaide University professor Derek Leinweber has sided with Adidas saying "If you want the goalkeeper to design the ball, they will give you an iron ball that sits at the centre of the field."[35]
Response from FIFA
On June 27, 2010 FIFA finally acknowledged concerns about the ball, but also said that they won't act on the problem until after the tournament. According to secretary general Jerome Valcke, FIFA will discuss the matter with coaches and teams after the World Cup, then meet with the manufacturer Adidas.[36](source : www.wikipedia.org)
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