Tennis star Andre Agassi admits in his new memoir that he began regularly using crystal meth in the 90s.
"I can't speak to addiction, but a lot of people would say that if you're using anything as an escape, you have a problem," he tells PEOPLE.
Agassi's book, Open, details his descent into drug use, as well as his hair loss, his troubled marriage to Brooke Shields and the love he eventually found with his current wife, Steffi Graf.
Asked how he thought his fans would react if they found out he was using drugs, Agassi, 39, says: "I was worried for a moment, but not for long ... I was actually excited about telling the world the whole story."
