Eflin will start Wednesday in Game 2 of the American League Wild Card Series against the Royals, Danielle Allentuck of TheBaltimoreBanner.com reports.

Eflin came away with a no-decision in Wednesday's 9-7 win over the Yankees, giving up three runs on four hits and five walks over 4.2 innings. He struck out one.

Eflin allowed two runs on six hits and a walk across six innings in a no-decision Thursday against San Francisco. He struck out five.

The Orioles activated Eflin (shoulder) from the 15-day injured list to start Sunday's game against the Rockies.

Eflin (shoulder) said Thursday that he expects to return from the 15-day injured list when first eligible on Sept. 1, Jake Rill of MLB.com reports.

The Orioles placed Eflin on the 15-day injured list Tuesday with right shoulder inflammation.

Eflin (9-7) picked up the win over the Red Sox on Thursday, allowing one run on five hits over six innings while striking out eight.

Eflin will make his Orioles debut in Game 1 of Monday's doubleheader against the Blue Jays, Jen McCaffrey of The Athletic reports.

Eflin is scheduled to start during Monday's doubleheader against the Blue Jays, and he expects to take the ball in Game 2, Roch Kubatko of MASNSports.com reports.

The Orioles are acquiring Eflin from the Rays on Friday in exchange for three unidentified minor-league players, Jeff Passan of ESPN.com reports.