The Jerry Maguire scene-stealer stays fit by practicing Brazilian Jiu Jitsu

By Liz Raftery
Updated November 11, 2011 10:30 AM

In case you missed it, Jonathan Lipnicki, who played Renee Zellwegger‘s adorable son in Jerry Maguire, is all grown up – and what a stud!

Though he’s famous for lisping, “Did you know the human head weighs 8 lbs.?” to Tom Cruise, it’s safe to assume Lipnicki can now bench press a large multiple of that.

The actor, who recently celebrated his 21st birthday, shows off chiseled abs and toned arms in new shirtless photos in New York’s Daily News.

He also has a Star of David tattooed on his left side.

An aspiring filmmaker, Lipnicki says he maintains his physique by participating in Brazilian Jiu Jitsu. According to his Twitter page he’s a “blue belt, almost purple.”