Roger Federer is considered one of the greatest tennis players of all time and he has been playing professionally since 1998. He has won a record 20 Grand Slam singles titles, the most in history for a male player. One of his most impressive tournament victories came in 2017 when he won the Australian Open at the age of 35. This was his first Grand Slam title since 2012 and it was a remarkable achievement considering his age and the strength of his opponents. He showed remarkable skill, determination and resilience to come through the tournament victorious and it is generally considered to be his best tournament performance.