Melbourne: Former world number one Lleyton Hewitt (Australia) retired on Thursday after being knocked out of the Australian Open.
Here is a look at his achievements.
Young achiever: He qualified for the Australian Open in January 1997, a month before his 16th birthday, the youngest qualifier in tournament history.
Adelaide title: Hewitt captured his first title, at his home town in Adelaide, over fellow Australian Jason Stoltenberg in 1998 after stunning Andre Agassi in the semifinals.
Top at 20: He became the youngest ever world number one aged 20 and nine months in 2001, breaking the 69-year-old record set by American Wimbledon champion Ellsworth Vines, aged 21, in 1932.
Grand Slam: Hewitt won his first Grand Slam title at the 2001 US Open, beating Pete Sampras 7-6 (7/4), 6-1, 6-1 in the final.
Wimbledon champion: He was crowned Wimbledon champion a year later, crushing Argentina's David Nalbandian 6-1, 6-3, 6-2 in the final....