"Me neither" - Stan Wawrinka humorously agrees with fan who questioned how the Swiss star won three Grand Slam titles

Trying to regain his top level for some time now, tennis star Stan Wawrinka recently showed that he has a great sense of humor as well. The Swiss player quipped that he had no idea how he managed to win three Grand Slam titles.

The 37-year-old is one of the very few male players to win more than one Major during the Big 3's dominant reign. He lifted his first Grand Slam trophy at the 2014 Australian Open, defeating players like Vasek Pospisil, and Novak Djokovic in the quarterfinals and Rafael Nadal in the title clash.

Wawrinka did the unthinkable by winning the 2015 French Open. He downed the likes of compatriot Roger Federer in the quarterfinals and Djokovic in the final.

His third Grand Slam triumph came at the 2016 US Open when he beat Juan Martin del Potro in the quarterfinals and Djokovic once again in the summit clash.

However, a number of injuries and poor form have kept the World No. 134 away from his best for a few years. His last singles title came at the 2017 Geneva Open. The former World No. 3 has faced first-round exits in his last four Major appearances.

This might be the reason a tennis fan recently took to social media, wondering how Wawrinka won as many big titles as he did.

"I sometimes still cannot understand how Stan Wawrinka won three Grand Slams," a fan tweeted.

Wawrinka surprised the fan with a humorous and self-deprecating response, saying:

"Me neither."

The fan, however, pointed out that he was a fan of the Swiss tennis player and wasn't trying to troll him or sound rude.