(AP Photo/Vincent Yu)

LONDON (AP) The ATP Tour will not reopen a doping case against Andre Agassi even though he admitted to lying about using crystal meth in 1997.

Agassi revealed in his recent autobiography that he failed a 1997 drug test, a result he says was thrown out after he lied by claiming he "unwittingly" took crystal meth.

However, ATP chairman Adam Helfant said on Friday that there was no way to sanction the American retroactively since he has retired from tennis.

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