Kaley Cuoco's blissful marriage to Ryan Sweeting appears to have run into some trouble after an Instagram video surfaced which showed the tennis pro reacting badly to his wife beating him at a game of tennis Sept. 24.

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The video which appears to be causing a stir shows the Big Bang Theory star exhibiting impressive skills at the game, successfully hitting shots back across to the other side of the net, before the video then focuses on Sweeting and sees him hit a shot in her direction, but potentially fail to send it back to the other side.

After his supposed failure, Sweeting appears to have a very negative reaction, throwing his tennis racket to the ground and seeming angry about losing the game-sparking rumors he and Cuoco were then fighting about her ability to best him at the sport that made him famous.

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Though the video was posted recently, it is unclear however just how old it is-and it wasn't actually posted on the actress' official Instagram account, where she goes by the handle of Normancook, meaning there's a chance the game in question is not even causing any problems in the couple's marriage.

The video also surfaced just one week after Cuoco appeared on Jimmy Kimmel Live! and admitted to being extremely competitive with her husband when they play.

"He's a real tennis player, and I grew up playing as a junior, haven't played in years," she told Kimmel after appearing on the show September 19. "So he'll take me out and hit with me, or play ping-pong or different things and he'll be like 'Oh, I'll play left-handed today' and I'm like, 'No! Play for real!'"

"He's like, 'Play for real, what is wrong with you?'" she continued. "So he'll play full-out and of course, I'm just crushed and devastated and furious."

After Kimmel asked what happens when she wins though, Cuoco admitted she never really has.

"I don't even get close, and then he'll say 'let me just play, let you ease yourself in,' and I'm like, 'No, I want you to play real, I want this to be the real thing,'" she said. "And then it just ends in tears and agony."

Tags: Kaley Cuoco ryan sweeting