Julian Finney/Getty Images
Roger Federer currently holds the all-time record for most Grand Slam victories at 16, but he has many other even more impressive achievements.
Federer has appeared in the finals of each major tournament at least five times—no other player has made the finals of each major more than twice. His 23 finals overall and 10 straight from 2005-2007 are both all-time highs.
From 2004-2010, Fed reached 23 consecutive singles semifinals, far exceeding Ivan Lendl and Rod Laver's previous mark of 10. His record streak of 29 consecutive quarterfinals reached is still ongoing.
Federer spent 237 weeks atop the World Rankings from 2004-2008, shattering Jimmy Connors' previous record of 160. His 285 total weeks at No. 1 is only one week behind Pete Sampras' overall record of 286.
Federer's dominance is unparalleled in the modern era. He is a phenomenal player on all surfaces, shown by his success at all majors.
The only blemish to an outstanding career is that he has had the misfortune of meeting Rafael Nadal, arguably the greatest clay court player ever, five times in the French Open. He has lost all five encounters.
That said, Federer is a living legend, and will go down as one of the most consistently dominant forces to ever set foot on a tennis court.
But there is one player who put together an even more impressive career.