Kaley Cuoco and Ryan Sweeting Split

— -- Kaley Cuoco's marriage is ending.

The "Big Bang Theory" star and her husband of 21 months, Ryan Sweeting, have split, according to People.

"Kaley Cuoco and Ryan Sweeting have mutually decided to end their marriage," Cuoco's rep told the magazine. "They ask for privacy at this time. No further statement will be issued regarding this matter."

Around the time the statement was released, Cuoco took to Instagram to post a photo of a dog (below) with the caption, "#mood."

The actress, 29, and the tennis player, 28, married on New Year's Eve in 2013, several months after they started dating. Earlier this year, the two battled rumors that their marriage was in trouble.

"I have never been more proud of anyone on this planet- this guy is fighting back from a whirlwind of injuries and not to mention constant 'conversation' regarding our marriage and basically any daily decision we decide to make," she wrote on Instagram in April. "So all of you who take it upon yourselves to trash our marriage, daily workings of our relationship and everything in between, go ahead and keep doing it, cause it only makes us stronger."