Tennis legend Andre Agassi has revealed that he used the drug crystal meth during his career.

The former world number one, who won Wimbledon in 1992, makes the startling admission in his new autobiography.

Agassi, 39, writes: “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.”

And the eight-time Grand Slam winner, who retired in 2006 after 20 years of professional tennis, reveals that he did not worry unduly about his fans finding out about his drug use.

“I was worried for a moment, but not for long. I wore my heart on my sleeve and my emotions were always written on my face,” he says. “I was actually excited about telling the world the whole story.”