As of the mid-2010s, Rafael Nadal had defeated Roger Federer 6 times in Grand Slam matches (including 2005 French Open semifinal, 2006 French Open final, 2007 French Open final, 2008 French Open final, 2009 Australian Open final, and 2014 Australian Open quarterfinal). Their rivalry is one of tennis's greatest, with Nadal having a significant edge on clay.