"The Appeals Committee concluded that the conduct of the player in taking banned drugs was gross misconduct, which entitled the club to treat the player's contract as at an end and amounted to a unilateral breach without just cause or sporting just cause, " the League said on Wednesday.

CNN: Chelsea aim to recoup loss on Mutu

And controversy followed Argentina's Diego Maradona who was banned mid-tournament after taking illegal, performance-enhancing drugs.

BBC: World Cup history - USA 1994