'American Muscle' Sneak Peek! How NFL Star Richard Sherman Preps for the New Season

How do star athletes get themselves in the best shape to dominate their respective sports?

Discovery Channel is teaming up with Mike Barwis, one of the top strength training coaches, for a new show called "American Muscle," that follows the top professional athletes as they train, strengthen and get their bodies ready.

"Extra" has an exclusive clip from the upcoming show in which Seattle Seahawk's star cornerback Richard Sherman visits Barwis Methods to meet his team of trainers.

Check it out!

"American Muscle" premieres Wednesday, July 9 at 9 PM on Discovery.