The Athletics have named Oller their starting pitcher for Thursday's game in Baltimore, Matt Kawahara of the San Francisco Chronicle reports.
Oakland will move to a six-man rotation this week, adding Oller to the mix in order for rookie Shintaro Fujinami to continue making Saturday starts as he transitions from Nippon Professional Baseball to the majors. As a rookie last season, Oller made 19 appearances (14 starts) and struggled to a 6.30 ERA and 1.63 WHIP over 74.1 innings. Since Oller covered five innings and 80 pitches in his most recent relief appearance April 7, he should provide Oakland with a decent amount of length in his first start, but he'll still be tough to trust as a streaming option while he's supported by one of MLB's worst lineups.