Kyle Schwarber announced Friday he is joining the competition, one day after fellow Phillie Bryce Harper announced his participation.
The slugfest could lead to a rematch of the 2018 Home Run Derby, which came down to a final round between Harper and Schwarber.
Harper ultimately won on what was then his home field in Washington.
Back then, Harper was playing for the Nationals while Schwarber was a member of the Chicago Cubs.
Schwarber leads the MLB so far in 2026 with 32 home runs.
For a full list of 2026 Home Run Derby participants, visit ESPN.com.
And for more coverage of the Midsummer Classic, visit 6abc.com/AllStarGame.