Cardinals remove Arenado with forearm injury after HBP
Arenado is day-to-day with a right forearm contusion.
The 30-year-old attempted to play in the bottom half of the fifth after being hit by the 94-mph fastball from Indians starter Zach Plesac.
Edmundo Sosa replaced the six-time All-Star at third base.
Arenado entered Wednesday's action hitting .259/.313/.500 with 20 home runs, 27 doubles, and 61 RBIs in 98 games.