Rooker is the penultimate addition to the Derby, barring an injury replacement being needed for Ronald Acuña Jr., who'll have the home crowd pulling for him. He'll be joined by James Wood, Junior Caminero, Cal Raleigh, Oneil Cruz, and Byron Buxton.

Athletics designated hitter Brent Rooker was the latest to commit to Monday's Home Run Derby, leaving the event at Atlanta one participant short of a full field. Rooker, who was named to the American League All-Star roster as a reserve Sunday,

Athletics slugger Brent Rooker is adding his name to the list of Home Run Derby participants. Rooker announced Thursday that he’s participating in the event, which takes place Monday in Atlanta.