ST. PETERSBURG, Fla. -- Injured Baltimore Orioles closer Zach Britton is scheduled to start a rehab assignment Wednesday with Triple-A Norfolk.
The left-hander is coming back from right Achilles tendon surgery.
He threw a two-inning simulated game before the Orioles played the Tampa Bay Rays on Saturday.
"Everything went great for Zach," Orioles manager Buck Showalter said.
Britton also went through fielding drills.
Reliever Darren O'Day, out since May 6 with a hyperextended right elbow, will resume throwing Tuesday. He got a cortisone shot Friday.