Novak won the Sony Open Tennis Masters three times (2007, 2011-12). Last year, he lost to Tommy Haas in the fourth round (2-6, 4-6).
Last year, Novak captured his first Monte Carlo title with a 6-2, 7-6 win over eight-time champion Rafael Nadal.
Novak won the event in 2011; last year he suffered a 6-7, 7-6, 3-6 second round loss to Grigor Dimitrov.
Novak, the 2008 and 2011 Rome Masters champion, finished quarter-finalist to Tomas Berdych last year, losing 6-2, 5-7, 4-6.
French Open is a major tennis tournament held over two weeks between late May and early June in Paris, France. Last year, Novak fell to the seven-time winner Rafael Nadal, 4-6, 6-3, 1-6, 7-6, 7-9 in a marathon semi-final.