The Braves are monitoring star outfielder Ronald Acuña Jr. after he was scratched from Atlanta’s lineup Wednesday due to lower back tightness. The 23-year-old star was removed not long before batting practice at Citi Field. Acuña ranks among the major league leaders in several key offensive categories. He began the day hitting .285 with 20 home runs, 45 RBIs and a .996 OPS. The 2018 NL Rookie of the Year was leading the league in runs (58) and was tied for first in stolen bases (15). Also, Tigers rookie Daz Cameron faces the team that originally drafted and signed him when Houston visits Comerica Park.