Braun needs the maintenance, even if he's the best option. I imagine Cain is still dealing with that thumb a bit, at the very least it's probably sore from the injections still. I'll be curious how he looks after the all-star break. I imagine it will be better before then, but he'll also be able to give his body a rest. And Braun is 2-11 against Archer with no XBH. Probably figured if they were going to give him a day off at some point in the next 3 games might as well be today. Ps Cain with 1.100 ops vs Archer in his career