Maradona previously battled with cocaine addiction and was banned for 15 months in 1991 when he tested positive for the drug. He was thrown out of the 1994 World Cup for doping when he tested positive for ephedrine. He was once the best player in the world and his fall from grace has been huge.
In 2003, Chelsea signed Mutu from Parma in a £15.8m deal, but a year later the club sacked him after he tested positive for cocaine. The striker was eventually ordered to pay the Blues around £14m in compensation, which he appealed against in what has been a lengthy legal battle.