Lakins was placed on the 15-day injured list with right elbow inflammation Friday, retroactive to May 12, Rich Dubroff of BaltimoreBaseball.com reports.
Lakins was sent down Thursday, but he'll have his option reversed after being placed on the injured list. He'll be sidelined until at least late May, but it's not yet clear whether he'll be forced to spend more than the minimum of 15 days on the IL.