Almost half-a-million FIFA.com Club members have already taken our Kick-Off Ball Quiz in an attempt to claim a priceless piece of the 2010 FIFA World Cup™ - an official adidas Jabulani kick-off ball.

The questions have not been easy but, just like some of the underdog teams at South Africa 2010, users have risen to the challenge. We are happy to announce the first 16 Kick-Off Ball Quiz winners. Each winner* will receive an official adidas kick-off ball accompanied by a certificate of authenticity.

Remember, it is not too late to win. There are still 47 kick off balls and one match ball* up for the winning. Simply login to FIFA.com during any South Africa 2010 match and take the five-question quiz. Visit the ‘Kick-Off Ball Quiz’ link on the right of this article to play.

Match Kick-off ball winner
South Africa-Mexico* boogieb
Uruguay-France chongks
Korea Republic-Greece andre1974
England-USA ashton777
Argentina-Nigeria alazzah
Algeria-Slovenia 3xmomus
Serbia-Ghana
Adan07
Germany-Australia fazeek
Netherlands-Denmark
Freesytler
Japan-Cameroon Macca17
Italy-Paraguay Erickin
New Zealand-Slovakia
ExreeHipp
Côte d'Ivoire-Portugal
aporcel
Brazil-Korea DPR
Chiwila-SV
Honduras-Chile
darkfred13
Spain-Switzerland wilynoel

*The kick-off balls for the Opening Match and the Final are not included. Winners for these two quizzes will receive a Jabulani match ball that was used during these aforementioned matches.