Federer becomes oldest number one singles player in history after Haase win

Roger Federer became the oldest number one singles player in tennis history after beating Robin Haase in the ABN AMRO World Tennis Tournament quarter-finals in Rotterdam on Friday.

The 36-year-old Swiss, who won his 20th grand slam last month by claiming a sixth Australian Open title, replaced Rafael Nadal at the top of the ATP rankings with a 4-6 6-1 6-1 victory over Dutchman Haase.