This story originally appeared on 6abc.
The 10-year-old son of Philadelphia Phillies right fielder Nick Castellanos has become a star himself at Citizens Bank Park.
Now he’s using his fame for a good cause.
Liam Castellanos‘ “Battle Cry” shirt is now available on the In the Clutch apparel website.
The design features the 10-year-old wearing a headband with pictures of his dad, along with Bryce Harper, Bryson Stott and Brandon Marsh.
“[I’m] very proud, for sure. You know, any time that you’re able to give back, it just means a lot. Also that he is steering it,” said Nick during a press conference on Monday.
A portion of the proceeds from the shirts will benefit “Kisses for Kyle,” a local nonprofit that helps kids battling cancer.