07/24/2014 03:54 pm ET

Cubs' Anthony Rizzo Promises To Dedicate A Home Run To Fan With Cancer, Hits 2

Chicago Cubs first baseman Anthony Rizzo may be a hard hitter, but he has a softer side, too.

Both aspects of the slugger's character were on equal display Tuesday, when the player pointed to the sky after each of his homers against the Padres. Turns out the mysterious gesture was a shout-out to Mike Kasallis, a fan who'd been diagnosed with leukemia. Rizzo had promised to dedicate a home run to him.

Many players might hesitate to dedicate a homer, fearing they may not hit one, let alone two. That doesn't seem to be a problem for Rizzo, who currently leads the National League with 25 home runs.

Rizzo not only hit two homers for Kasallis, he did it on the fan's 22nd birthday, adds.

If dedicating two home runs to a sick patient feels familiar, there's good reason for your déjà vu: Former Yankees player Paul O'Neill made a similar promise to Kramer in a 1995 "Seinfeld" episode.