Federer reaches 2nd round at French OpenSlovakia's Lukas Lacko returns the ball during the first round match of the French Open tennis tournament against Switzerland's Roger Federer at the Roland Garros stadium, in Paris, France, Sunday, May 25, 2014. (AP Photo/Darko Vojinovic)
Federer, who is looking for a second French Open title and 18th overall, reached the Monte Carlo final last month but lost to Stan Wawrinka. He then lost his first match in Rome after the birth of his second set of twins.
This season, Federer has been playing with former great Stefan Edberg as his coach.