Ten landmark matches in the career of Roger Federer

Roger Federer said he will retire from competitive tennis following next week's Laver Cup in London. Following are 10 landmark matches from the 20-times Grand Slam champion's career:

2001 - WIMBLEDON VICTORY OVER SAMPRAS

A 19-year-old Federer announced himself to the world by ending Pete Sampras's 31-match winning streak at Wimbledon in the fourth round.

Before that defeat, Sampras had lost just once in eight years at the All England club, amassing a record-equalling seven men's crowns between 1993 and 2000.

2003 - WIMBLEDON FINAL AGAINST PHILIPPOUSSIS

Federer defeated towering Australian Mark Philippoussis to win his first Grand Slam title, becoming the first Swiss men's singles champion at the tournament.

2004 - U.S. OPEN FINAL AGAINST HEWITT

Federer thrashed Australian Lleyton Hewitt 6-0 7-6(3) 6-0 in the final for his first U.S. Open title. His victory at Flushing Meadows came after triumphs at the Australian Open and Wimbledon, making him the first man since Mats Wilander in 1988 to win three majors in a season.

2008 - WIMBLEDON FINAL AGAINST NADAL

Rafa Nadal ended Federer's bid for a sixth straight Wimbledon title with a 6-4 6-4 6-7(5) 6-7(8) 9-7 victory in a final that lasted nearly five hours.

There were two rain interruptions and the contest finished in fading light, bringing to an end Federer's streak of 65 straight wins at Wimbledon and his hopes of surpassing Bjorn Borg's five consecutive titles.

2009 - AUSTRALIAN OPEN FINAL AGAINST NADAL

Nadal denied Federer a record-equalling 14th Grand Slam singles crown at the Australian Open with a 7-5 3-6 7-6(3) 3-6 6-2 victory in a pulsating final on the blue hardcourt in Melbourne.

2009 - FRENCH OPEN FINAL WIN AGAINST SODERLING

Federer lifted the trophy at Roland Garros for