Ryan Sweeting is pulling a Brian Austin Green -- the tennis pro is seeking spousal support from his much more successful other half, Kaley Cuoco, reports Us Weekly.

The 28-year-old made his request on Thursday, Oct. 15, after the Big Bang Theory actress' filed for divorce at the end of September.

From the looks of Cuoco's divorce filing, spousal support is part of their prenup.

On Sept. 25, the actress and the tennis player announced that they'd decided to end their 21-month marriage. The couple said in a statement, "Kaley Cuoco and Ryan Sweeting have mutually decided to end their marriage. They ask for privacy at this time. No further statement will be issued regarding this matter."

On Sept. 28, Cuoco filed for divorce and cited irreconcilable differences as the cause. Rumors have swirled that the 29-year-old TV star left her husband due to his substance abuse issues. The blonde shut also down any talk that her friendship with her ex-boyfriend and costar Johnny Galecki was the cause for the split.

A source told Us that, "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."

Sounds like it's good Cuoco got out when she did!