The Royals placed Schreiber on the 15-day injured list Monday with a right knee patella tendon injury.
Schreiber suffered the injury during a relief appearance Sunday against the Cubs. The Royals haven't provided a timeline for Schreiber's return from the IL, but he'll be out of commission for at least two weeks. Will Klein was recalled from Triple-A Omaha to replace Schreiber in the bullpen.