India, Sept. 1 -- Swiss tennis ace Leandro Riedi found himself in controversy during his second-round win over Argentine Francisco Cerundolo. He reported a vocal fan to the chair umpire, who was cheering him on. After losing a break, a fuming Riedi suspected the fan of being a bettor and decided to complain.

After the match, he said, "It feels like more and more bettors are coming to watch. Of course they can come to watch tennis if they stay on the right side of the line, but I think it is a problem which is getting bigger and bigger because of social media."

"If people come live [to matches] and support that's nice, of course. But you know if you lose, one of these guys who are betting might abuse you on social media later."

Riedi lo...