Staumont (neck) will begin a rehab assignment at Triple-A Omaha on Sunday, Lynn Worthy of The Kansas City Star reports.
Staumont landed on the injured list in late June due to a neck strain but has been cleared to return to game action in the minors to close out the weekend. If he feels good following Sunday's rehab appearance, the right-hander will likely be able to rejoin the Royals sometime next week.