Andre Agassi said he has no regrets about baring his life in his recently published memoirs and his use of crystal meth despite criticism from the tennis community, adding that his wife Steffi Graf was proud of him.

In "Open", Agassi describes loathing the tennis life he was pushed into by his father and reveals that a deep depression in 1997 led him to use the recreational drug, and that he lied to officials about using crystal meth after testing positive.

"I knew it wasn't going to be pleasant waters, but again nothing really worthwhile in life comes without great sacrifice," Agassi said in an interview Thursday after a book signing that drew nearly 500 people on a rainy day.

"How do you regret your life, how do you regret telling the truth? This is the only chance I have to communicate the power of my journey. That's why I called the book "Open". That's why it took me three years to write it.

"I want this thing to impact millions of people I've never met."

The backlash to Agassi's book has been intense.

World number two Rafa Nadal said cheats in tennis must be punished, Sergi Bruguera, who lost the 1996 Atlanta Olympic final to Agassi, said the gold medal should be forfeited. Former U.S. and Australian Open champion Marat Safin, said Agassi should return any tainted prize money and titles.

INVESTIGATION

The World Anti-Doping Agency (WADA) said it wanted to investigate whether any charges could be brought against Agassi following his admission he lied about using crystal meth.

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