Miller, who'd pitched just once in the previous 11 games entering Tuesday's extra-inning loss to the Astros, threw 14 fastballs of at least 100.5 mph on his 29 pitches during his two scoreless innings, Martin Gallegos of MLB.com reports.

Miller fired two perfect innings during which he recorded four strikeouts in the first game of a doubleheader against the Rangers on Wednesday.

Miller tossed a clean ninth inning, striking out all three batters he faced to pick up his fifth save during Monday's 2-0 win over the Yankees.

Miller pitched a scoreless ninth inning against the Cardinals to record his fourth save Wednesday, striking out two and walking one while not allowing any hits.

Miller tossed a perfect ninth inning Tuesday in a 4-3 win over the Rangers. He struck out two.

Miller worked the ninth inning of Saturday's 12-3 loss to the Guardians, allowing two earned runs on three hits and a walk over one inning. He struck out one.

Athletics manager Mark Kotsay indicated recently that he would like to see Miller gradually move up the bullpen hierarchy rather than anointing him as closer right away, Martin Gallegos of MLB.com reports.

Miller served as a traditional reliever and didn't factor into the decision in the Athletics' loss to the Tigers on Thursday, allowing two runs (one earned) on three hits and a walk over two-plus innings. He struck out two.

Miller (0-1) took the loss as the opener against the Padres on Saturday, allowing two earned runs on two hits and three walks over one inning. He struck out two.

Miller is listed as the Athletics' opening pitcher for Saturday's game against the Padres.