Share The event was staged to raise money to give tennis tournament tickets to those from poorer backgrounds and to support victims of typhoon Morakot.
In 1988, she became the first and only tennis player male or female to achieve the Calendar Year Golden Slam by winning all four Grand Slam singles titles and the Olympic gold medal in the same calendar year.
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But as Agassi tried to get bids for a rare antique oriental plate he decided to take matters to the line by offering the highest bidder something extra.
It's not know if Graf sanctioned the saucy matchplay - or indeed if Stef was pictured in the altogether on his handset - but it certainly helped Andre raise the money for a worthy cause.
She married former World No.