In Pictures: Roger Federer's 18 Grand Slam titles
Swiss tennis player Roger Federer won his 18th Grand Slam title, the 2017 Australian Open, against Rafael Nadal on Sunday. Federer holds the record for the most men's singles Grand Slam titles in the Open Era, winning one French Open, five Australian Open, seven Wimbledon and five US Open titles. His first Grand Slam win was at Wimbledon in 2003.