Oakland A's right fielder Josh Reddick exits game with 'lower back tightness'

Oakland Athletics right fielder Josh Reddick exited Sunday's contest against the Cleveland Indians in the fifth inning with what the A's announced as "lower back tightness." After the game, manager Bob Melvin said Reddick was doubtful for tomorrow:

Melvin said Reddick is day-to-day with right lower-back tightness. Doubtful for tomorrow.

— Trevor Hass (@TrevorHass) August 2, 2015

Reddick says he is day to day. Guesses he will miss tomorrow but maybe not much more.

— Susan Slusser (@susanslusser) August 2, 2015

There was no indication of any trouble with Reddick until Mark Canha pinch hit for Reddick in the bottom of the fifth inning. In the previous half-inning, Reddick made an excellent catch near the visiting bullpen (link to video), but did not appear to collide with anything in the process as he navigated between relievers and the ball boy:

After the game, Reddick thought he might have tweaked his back right then:

Reddick says back tightened up after he had to dodge a ballboy in bullpen who didn't move out of his way. He's not pleased about that.

— Susan Slusser (@susanslusser) August 2, 2015

Sam Fuld moved from left field to right field in the top of the sixth and Mark Canha remained in the game in left field.