Craig Kimbrel said he used to keep his arm behind his back, but that became too painful five years ago when the right-hander had biceps tendinitis. … “There’s many theories behind it,” Kimbrel said. 

Last night his irritating pitching form was on full display, and some fans behind the plate had a fun time with it. One fan in particular. ET’s one and only Mary Hart.. 

Definitely looks like she’s doing a monkey impression. 

Yep, that’s his form.