ATLANTA (AP) — Left fielder Justin Upton has left the Braves’ game against the Cubs with a lower back muscle contusion after being hit by a pitch.

Chicago right-hander Jeff Samardzija hit Upton with a pitch in the sixth inning. Upton ran to first base but left the game, walking slowly off the field in apparent pain, after being checked by a Braves trainer.

The Braves say Upton, who was replaced by Jordan Schafer, is day to day.

Upton appeared to hurt his lower back in the fourth inning when he tagged Anthony Rizzo at the end of a long run-down between first and second. Upton ran in from the outfield to help on the play. Rizzo collided with Upton, who then bent over and reached for his lower back but remained in the game.

Copyright 2014 The Associated Press. All rights reserved. This material may not be published, broadcast, rewritten or redistributed.