Retired American pro tennis player Andy Roddick believes he would be a 17-time Wimbledon champion if he possessed the confidence of amateur tennis players who think they could get a game off a professional.

According to a US Tennis survey by Research Without Barriers, 71% of people asked believed that they could win a game against a tennis pro. Shockingly, 47% of people over the age of 55 believed so as well.

The former World No.1, who has appeared in three Wimbledon finals which he lost to Roger Federer, expressed his disbelief at the aforementioned numbers when asked about it on The Tennis Channel.

"This is insane! If I had as much self-confidence in my tennis game, as these people who were surveyed, I would've won Wimbledon 17 times. Minimum! This is absolutely insane. There is no chance," Roddick said.

Furthermore, the 2003 US Open champion was aghast when asked if an amateur player could win a point against him.

"Well, I stink right now, so I don't know, we could double fault, so maybe?" admitted Roddick. "But a game? We went from a game, which last time I checked is four points in pretty close proximity, to a single point. That's not the same conversation."