So earlier today Federer sealed his 6th Wimbledon and 15th grand slam title surely there is little doubt that he is the greatest player of the modern era.
Let's take a look at some of the stats of the best players since 1968:
Most Grand Slams:
Roger Federer : 15
Pete Sampras: 14
Rod Laver: 11 (5 in the Open Era)
Bjorn Borg: 11
Ivan Lendl: 8
Most grand Slams in a calender Year:
Rod Laver : 4 Slams (1969 - Australian Open, French Open, Wimbledon, US Open)
Roger Federer: 3 Slams (2004, 2006, 2007 - All Australian Open, Wimbledon, US Open)
Matts Wilander: 3 Slams (1988 - Australian Open, French Open, US Open)
Jimmy Conners: 3 Slams (1974 - Australian Open, Wimbledon, US Open)
Longest Winning Span:
Ken Roswell : 20 years (Australian Open 1953-Wimbledon 1974)
Pete Sampras : 13 years (US Open 1990-US Open 2002)
Boris Becker : 12 years (Wimbledon 1985-Australian Open 1996)
Andre Agassi : 12 years (Wimbledon 1992-Australian Open 2003)
Roger Federer : 7 years (Wimbledon 2003-Wimbledon 2009)
Most weeks at no1:
Pete Sampras: 286 weeks
Ivan Lendl: 270 weeks
Jimmy Conners: 268 weeks
Roger Federer: 238 weeks (as of 5/7/2009)
John McEnroe: 170 weeks
Calender Year at no.1
Roger Federer: 3 times (2005, 2006, 2007)
Jimmy Conners: 3 times (1975, 1976, 1978)
Ivan Lendl: 2 times (1986, 1987)
Pete Sampras: 2 times (1994, 1997)
Lleyton Hewitt: 1 time (2002)