Eflin underwent Tommy John surgery on his right elbow Wednesday, Andy Kostka of TheBaltimoreBanner.com reports.
The Orioles moved Eflin to the 60-day injured list Tuesday after he received a second opinion on his injured elbow, and he'll now be out until midway through the 2027 campaign after going under the knife. The 32-year-old righty has made just 15 starts over the past two seasons, during which he's posted a 5.76 ERA and 1.43 WHIP over 75 innings.