Monica Seles

The Yugoslav-American two-handed groundstroke pioneer who won 9 Grand Slam singles titles before being stabbed by a spectator on court in Hamburg in April 1993 -- an act that interrupted her dominance of the women's game at its peak. Monica Seles had won 8 of the 11 Grand Slams she had entered between 1990 and 1993 and was ranked world number one for 178 weeks before the attack; she returned to win the 1996 Australian Open but was never the same dominant force.