What happened: Bryce Harper enlisted a pitcher dubbed 'The Secret Weapon' to throw to him in the upcoming Home Run Derby. ESPN discussed the selection during a SportsCenter broadcast ahead of the All-Star event.

Why it matters: Only three players in Major League Baseball history have won the Home Run Derby in their home stadium. Harper is chasing that rare accomplishment as the contest takes place in his own ballpark. Having a trusted pitcher on the mound is a primary factor for hitters trying to maximize swing rhythm under the timed tournament rules.

What to watch: The All-Star Home Run Derby bracket will unfold during the midsummer festivities. Competitors will participate in on-field practice sessions with their selected throwers ahead of the first round.