Bour dislocated his left pinky while sliding into a base and is considered day-to-day, Clark Spencer of the Miami Herald reports.
Bour didn't even start Tuesday's contest, entering the game in the eighth inning as a pinch hitter. Fortunately, he avoided a fracture that would likely cost him extended time. He will have a chance to return to the lineup as soon as Wednesday but would likely be replaced at first by either Chris Johnson or Derek Dietrich should he be unable to go.