Irvin was optioned to Triple-A Norfolk on Sunday, Roch Kubatko of MASNSports.com reports.
Irvin will return to Triple-A after being called up Tuesday to provide the Orioles with an additional bullpen arm. The left-hander recorded one out in Saturday's win, recording his first scoreless outing with Baltimore this season. Overall, Irvin owns a 10.38 ERA in the majors this year, and he'll look to hone his craft with Norfolk before potentially returning to Baltimore later in 2023.