Backhus is an opener for Taijuan Walker, who looks thoroughly cooked. Going off the 'avoid 3 games in 4 days' approach, they're probably trying to avoid Kerkering, Mayza, Shugart, and Alvarado got pulled for an injury/injury concern last night. Backhus himself pitched Sunday and Monday, so guessing he's one inning at most. Game 3 of a four game, Monday-Thursday series is always going to test a bullpen, but put some runs up early and they might let Walker wear it for a while (and we can hopefully soak up some innings from Little or Rolison).