Kaley Cuoco has reportedly been hit by a spousal support demand from her estranged husband tennis star Ryan Sweeting despite the pair arranging a pre-nuptial agreement before their wedding. The Big Bang Theory actress, who is said to be worth about $45million, filed for divorce from Sweeting last month.

Kaley Cuoco and Ryan SweetingThe pair are divorcing after just 21 months of marriage

Rumours have circled the former couple that they were torn apart by Sweeting’s addiction to painkillers prescribed to him after back surgery.

According to US Weekly, the professional sport star staked his claim in response to Cuoco’s divorce papers.

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According to Cuoco’s filed documents, spousal support is payable according to their pre-nuptial.

Cuoco called time on their marriage after only 21 months after a whirlwind romance that culminated on a wedding day for the two on New Year’s Eve.

The 29-year-old actress has recently slammed rumours of a relationship with ex-boyfriend and co-star Johnny Galecki, who plays Leonard - boyfriend of Cuoco’s character Penny.

MORE: Kaley Cuoco And Ryan Sweeting Split AFter 21 Months Of Marriage

Following her marriage breakdown, a source told US Weekly: "She supported him but she said he couldn’t make the commitment to get sober.

"He’d tell her he was working on it and instead go get wasted."

A second source noted that Cuoco also had "a lot of insecurities" within their relationship.