Atlanta Braves first baseman Matt Olson will take teammate Ronald Acuña Jr.’s place in Monday’s Major League Baseball Home Run Derby, the club announced Friday. The decision comes after Acuña experienced lower-back tightness earlier in the week and opted out of the power-hitting showcase as a precaution. Acuña, the reigning National League Most Valuable Player, is still slated to start in right field during Tuesday’s All-Star Game. Olson, who has hit 17 home runs this season, enters the Derby with betting odds of about +480, according to sports-book lines. The eight-man field also features Byron Buxton, Jazz Chisholm Jr., Brent Rooker, Junior Caminero, Cal Raleigh, James Wood and O’Neill Cruz.