Let's take a look at what some of the players do when they are not playing or practicing.
Maria Sharapova wears sweatpants and tennis shoes as she arrives back to the Park Hyatt Paris-Vendome hotel.
John Isner enjoys a day off with a visit to the Eiffel Tower.
Milos Raonic found the Canadian consulate in Paris.
Rendy Lu Yen-hsun was at the Japanese street in Paris.
(Images via Facebook pages, Zimbio.com)