But nine men have also won singles Grand Slams since Wimbledon 2003
Federer, Rafael Nadal, Novak Djokovic and Andy Murray are the four obvious names who've done it - but can you name the other six?
Since 2003, the Swiss legend (37) has won eight Wimbledons, six Australian Opens, five US Opens and a French Open. The Spanish clay court phenomenon (33) has won a staggering 12 French Opens as well as three US Opens, two Wimbledons and an Australian Open. The Serbian great (32) has an incredible tally of seven Australian Opens as well as four Wimbledons, three US Opens and a French Open. Arguably Scotland's greatest ever sportsman (32) landed Wimbledon in 2013 and 2016 and the US Open in 2012. He has also finished runner-up in five Australian Opens and a French Open. Like Murray, Swiss ace Wawrinka (34) deserves enormous credit for winning three Grand Slams in the Federer/Nadal/Djokovic era. He has won one each of the Australian, French and US titles. The retired Russian star (now 39) landed the 2005 Australian Open, having previously landed the 2000 US Open.. The Argentinian player, now 40, landed the 2004 French Open title with a final win over fellow countryman Guillermo Coria. The big Argentinian (30), landed the 2009 US Open by beating Roger Federer in a five-set final. The Croatian player won the 2014 US Open final against Japan's Kei Nishikori, before going on to lose finals at Wimbledon in 2017 and Australia in 2018 The American (36) won the 2003 US Open final against Juan Carlos Ferrero and later went on to lose three Wimbledon finals.