Agassi admits to crystal meth use

In his new autobiography, the world's former number one tennis player Andre Agassi candidly admits using the recreational drug crystal methamphetamine and then lying to men's governing body -- the ATP to escape a likely suspension.

Agassi says he was introduced to the drug in 1997 by his assistant when his game was in freefall and he was having doubts about his impending marriage to actress Brooke Shields.