Manager Mark Kotsay said Saturday that Oller will take on a bullpen role for the Athletics to begin the 2022 campaign, Martin Gallegos of MLB.com reports.

EDGE Analysis

Oller was informed Friday that he'd made the Opening Day roster, and he'll serve as a multi-inning reliever to begin the year. The right-hander made eight starts at Triple-A Syracuse last season and posted a 2.45 ERA and 1.02 WHIP in 44 innings. He'll be one of the top options to fill in as a spot starter if needed.