Graf–Seles rivalry close match 1–6, 6–4, 6–4. 1999 Australian Open Quarter Final: Seles won 7–5, 6–1, and finished the match strongly, for her only post-stabbing victory over Graf. 1999 French Open Semi Final: Graf defeated Seles in a three-set match after coming from a set behind. This was their last ever head-to-head match. Graf went on to win the title. profiles at WTA site Graf–Seles rivalry Steffi Graf and Monica Seles are retired professional tennis players who between 1989 and 1999 engaged in a rivalry for the best female tennis player. They competed in 15 matches. Seles, a left-handed player, demonstrated powerful
Steffi Graf Wilson Pro Staff 7.0 lite, then switched to the Pro Staff 7.5 in 1996 and to the Pro Staff 7.1 in 1998. Graf's racquets were strung at 29 kilograms (64 pounds), significantly above the 50-60 pound range recommended by Wilson. In 2006, she signed an endorsement deal with Head. In 2010, Graf and Agassi collaborated with Head and developed the new line of Star Series tennis racquets. Graf has signed many endorsement deals throughout the years including a ten-year endorsement deal with car manufacturer Opel in 1985, and Rexona from 1994 to 1998. Other companies she has endorsed include Barilla,