Watch: Matt Damon stars in PSA for Stand Up To Cancer with MLB

MLB will continue its tradition of commemorating the Stand Up To Cancer initiative with a moment of silence during the fifth inning of Tuesday's All-Star Game, at which point players and fans will identity the loved ones they've lost to the disease.

Ahead of the game, Stand Up to Cancer unveiled a new PSA campaign called "For All the Moments We Stand Up," which features Matt Damon, Uzo Aduba, Jordana Brewster, Zachary Levi, Joe Manganiello, and Candice Patton inside a baseball stadium.

MLB has donated more than $40 million to Stand Up to Cancer during their 11-year relationship.