Who is the greatest male tennis player of all time? In terms of pure numbers, Federer is generally considered to be the greatest men's tennis player with a massive 17 grand slams and six ATP World Tour Finals titles. He silenced his critics by finally capturing his first Roland Garros title in 2009 and is the only male player to have reached the final of each slam at least five times. Pete Sampras Grand slams: 14 Australian Open: 2 French Open: 0 Wimbledon: 7 US Open: 5 The dominant player of the 1990s, Sampras enjoyed a fierce rivalry with fellow American Andre Agassi and was almost unbeatable at Wimbledon, losing just once in an eight-year period from 1993 to 2000. Despite all his accomplishments, he never managed to even reach the French Open final. Rafael Nadal Grand slams: 13 Australian Open: 1 French Open: 8 Wimbledon: 2 US Open: 2 The undisputed king of clay with eight French Open titles, Nadal's career looked to be hanging in the balance when he was forced to take seven months out with a career-threatening knee problem. Since then he has bounced back with two more grand slam titles and, with Federer seemingly on the decline, he has his Swiss rival's tally of 17 victories in his sights. Rod Laver Grand slams: 11 Australian Open: 3 French Open: 2 Wimbledon: 4 US Open: 2 With an incredible 200 career titles, including 11 grand slams, Laver was the dominant force of the 1960s, completing "The Grand Slam" of all four titles in both 1962 and 1969. He is the only male to achieve such a feat in the Open era. Bjorn Borg Grand slams: 11 Australian Open: 0 French Open: 6 Wimbledon: 5 US Open: 0 In a professional career that lasted just 10 years, Bjorg managed to win 11 grand slam titles. He never managed to win the US Open title and only once competed at the Australian Open, but he was nearly unstoppable in the other two slams and would surely have won more had he not retired at the age of 25.