Stefanie Graf hails No.1 Ashleigh Barty's ascent, depth of tour in Zhuhai
Where Are They Now: Steffi Graf - Sports Illustrated
Tennis' only Golden Slam winner: Steffi Graf's dream run in 1988
German tennis star Steffi Graf smiles during a practice session at the grasscourt championships at Devonshire Park June 16. Graf, back on the tennis scene after her recovery from a knee injury