Unlike Djokovic, past French Open champ Wawrinka loses early

Switzerland's Stan Wawrinka reacts as he plays Spain's Guillermo Garcia-Lopez during their first round match of the French Open tennis tournament at the Roland Garros stadium, Monday, May 28, 2018 in Paris. (AP Photo/Michel Euler)

PARIS — Like Novak Djokovic, Stan Wawrinka is a past French Open champion still working his way back into form after surgery.