The Cubs had announced the left-handed Miguel Montero as a pinch-hitter, and their right-handed options to counter Miller — Albert Almora and David Ross — were limited. Francona chose Miller, who got a fly out to end the threat.
Miller struck out the side in the sixth, running his scoreless streak this postseason to 15⅓ innings, and then left for the pinch-hitter Coco Crisp, who singled home the winning run in the seventh.
“I just thought that he did what he was supposed to do,” Francona said of Miller, “and if he wouldn’t have hit, maybe we would have sent him back out. But I think he threw 19 pitches. I was O.K. with where we were there. That was plenty for tonight.”
Miller, who actually threw just 17 pitches, gave way to Bryan Shaw for five outs. Cody Allen — 10 scoreless innings this postseason — collected the last four outs, striking out Javier Baez for the final one on a high fastball with the tying and winning runs in scoring position.