The Teamgeist ball was the official football for the 2006 FIFA World Cup in Germany. Source: Flickr Image/ CC BY 2.0
Source: AAP Image/ Adam Davy/PA Wire
The Sports Aerodynamics Research Centre at RMIT University, Melbourne headed by Professor Firoz Alam has undertaken and aerodynamic study of 'Telstar 18' ball. Source: Dr Firoz Alam
Jabulani was the official match ball for the 2010 FIFA World Cup. Source: AAP Image/ Martin Rickett/PA Wire.