Martina Hingis turned pro in 1994 and was creeping up the rankings in the 1995 and 1996 seasons.
She became a household name after her run to the 1996 US Open semifinals, falling to Steffi Graf.
She would fall to Graf in the final of the WTA Championships later that year - in five tough sets.
But just a matter of weeks later she would get her first Grand Slam title at the Australian Open.
She was the youngest Grand Slam champion in the Open Era. In March she became the youngest No.1.
Her incredible 37-0 start to that 1997 season was stopped by Iva Majoli in the French Open final.
But Hingis got right back on the winning track, snagging her second Grand Slam title at Wimbledon.
And her third came at the US Open, beating Venus Williams in the final, some major foreshadowing.
Hingis won her fourth Grand Slam title at the 1998 Australian Open - now four of the last five.
She wouldn't win any more majors in 1998 but ended the year with the WTA Championships title.
And Grand Slam title No.5 would follow shortly after as the Swiss Miss won the 1999 Australian Open.
Several Grand Slam doubles titles followed, as well as the Hopman Cup in 2001 with a future legend.
Hingis' final Grand Slam final was the 2002 Aussie Open, losing a heartbreaker to Jennifer Capriati.
An ankle injury ruined her 2002 season and at the end of the year she left the tour indefinitely.
But the voices got louder and louder...
Ready to give it another go, Hingis announced she would come back to the tour at the start of 2006.
She won her first Grand Slam mixed doubles title at the 2006 Australian Open with Mahesh Bhupathi.
She also won three more WTA titles, including Premier titles at Rome in 2006 and Tokyo in 2007.
She made it as high a No.6 in her second career, even qualifying for the WTA Championships in 2006.
Hingis re-retired at the end of the 2007 season but has since been a strong presence in the sport.