PARIS—Switzerland’s Stan Wawrinka says that at times, French fans have insulted him during his matches at Roland Garros. Wawrinka suggested it could be due to his comments following the 2014 Davis Cup final, where he said that members of France's team had talked too much going into the competition. Switzerland defeated France on the road to win the Cup.

“People were whistling when I was playing against [Gilles] Simon on the Lenglen Court, and a lot more than for this match today,” said Wawrinka, who beat Frenchman Jo-Wilfred Tsonga in the semifinals at Roland Garros. “So it's happened to me before. I have the impression that what happened during the Davis Cup last year—I said things that maybe had gone too far. But I didn't want to harm anybody. I wasn't nasty against anybody. It's about joking, saying a few things several months before the final. But the crowd will remember. They just remember what I said and not what had happened before, vis-a-vis the French players.”

Wawrinka added that he and Tsonga do not have a problem with each other. “We practice a lot before,” Wawrinka said. “I was the first to be happy to see he's playing well again, that he's reached semis, and the first to be disappointed that he couldn't win today, even though I must say I'm very happy that I won.

“You see what I mean between us, the players, Davis Cup is over. It's the past. They have an opportunity to win it again this year and I hope they will do this, because many people deserve it.”