A's slugger Brent Rooker is set to compete in Monday's Home Run Derby, and he'll be up against some of the top players in the game. Former teammate Byron Buxton and AL West rival (and home run leader) Cal Raleigh are just two of the participants that will be joining Rooker in taking hacks.

Brent Rooker and Jazz Chisholm Jr. have joined the lineup for Monday night's All-Star Home Run Derby in Atlanta.

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,