The ball ...

England's goalkeeper, Robert Green, reacts after missing the ball during its Group C first-round match against the US on June 12 at Royal Bafokeng stadium in Rustenburg. [Xinhua]

Green was not the only goalie to make a stupid mistake during the Cup and the ball, Jabulani, has been considered the culprit. Producer adidas defended the design of the ball but US space agency NASA has entered the fray on this one, saying the 440-gram sphere becomes unpredictable when propelled at more than 44 miles per hour, resulting in unnatural swerves and deviations.