Wada demands Agassi answers from ATP

Andre Agassi has admitted his life has veered close to "catastrophe" more than once as anti-doping chiefs urged tennis authorities to explain why the American avoided a drugs suspension.

Agassi's revelation that he used crystal meth during 1997, the worst year of his career when he slumped to 141st in the world rankings, was followed by his explanation of how he avoided a ban after failing a test.