#2 Martina Hingis
Scaling new peaks while still being a teenage sensation, Martina Hingis is the greatest female athlete to emerge from Switzerland in all-time.
Hingis is one of the few tennis players in the Modern Era to have transitioned quickly from Singles to Doubles after Singles retirement. She held the Number 1 ranking in Singles for a total of 209 weeks and Number 1 Doubles Ranking for 90 weeks while holding the numero uno position in both formats for 29 weeks.
In Singles, Doubles and Mixed Doubles, she won 5, 13 and 7 Grand Slam titles respectively most notably winning Wimbledon at the age of 16 in 1997 and in the process becoming the Youngest ever World Number 1 in WTA history.
The only Grand Slam missing in her collection across all 3 categories is the Singles French Open trophy. Had she won the Suzanne Lenglen trophy, she would have become only the 4th player in history to have won the 'Box Set' of Grand Slams.
Hingis retired from all forms of professional tennis in 2017 while still being ranked the Number 1 Doubles Player.
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