BALTIMORE — A few weeks before the All-Star break, Mookie Betts called J.D. Martinez.
Betts had just decided to participate in this year's Home Run Derby, and wanted some guidance from his Dodgers teammate — not on how to hit home runs in the event, but rather to help him continue his ascendant season once it was done.
"If my swing gets messed up," Betts said, "are you gonna be able to [help me] get it back?"
