Royals' James McArthur: Back in minors

The Royals optioned McArthur to Triple-A Omaha on Friday.

McArthur made his MLB debut Wednesday, surrendering seven runs on six hits and a walk over just one inning. He'll now return to the minors to make room for Alec Marsh, who will be filling in as the Royals' starter Friday in place of Jordan Lyles (illness).