If Rays come back, will roster change?

Down 2-1 in their American League Division Series versus the Boston Red Sox, the Tampa Bay Rays still have some work to get done before having to make any roster decisions for the next round of the playoffs. Of course, they might not get there at all, but what we learned from Game 3 is if they do pull off the comeback and move on to the ALCS, someone currently on the roster might end up being left behind.