What happened: Ben Rice enlisted his father to assist with batting practice leading into Monday's exhibition in Philadelphia. The rookie first baseman enters the eight-player tournament alongside seven other major-league sluggers.

Why it matters: The first baseman earned an All-Star selection during a breakout rookie campaign featuring at least 25 home runs before the midseason break. His recent power surge included a multi-homer performance in a 12-4 victory on July 9.

What to watch: The first round of competition begins at 8 p.m. ET, with the tournament champion receiving the Liberty Bell chain.