The move makes room for waiver claim Scott Blewett on the active roster. Selby gave up two runs in an inning in his lone appearance for the Orioles.

Selby takes the place of Zack Eflin with Eflin on the injured list with a lat sprain. The27-year-old will be a multi-inning bullpen option while he’s with Baltimore.

Selby was a long shot to secure a spot in Baltimore’s season-opening bullpen. The 27-year-old righty, who made five relief appearances last year between the Orioles and Royals, will head back to Triple-A as extra organizational relief depth.

Selby pitched well for the Orioles, allowing two earned runs in six innings while walking four and striking out four. However, he threw 59 pitches in two games during the series against the Mets, so the Orioles will call up Nick Vespi as a fresh arm for the bullpen.