The Royals have claimed Rule 5 choice Patrick Schuster off of waivers from the Padres, MLBTR's Tim Dierkes reports (Twitter links). The 23-year-old southpaw was the first choice in this year's Rule 5 draft.
Kansas City will now have the same rights as did San Diego, meaning the club will need to keep him on its active roster all year in order to keep him going forward. Otherwise, he would once again hit the waiver wire and ultimately (if he clears waivers) be offered back to the Diamondbacks, his original team.
As Dierkes notes, the Royals had seemed ready to give its last pen slot to fellow lefty Francisley Bueno. Instead, perhaps, the club will see if Schuster is able to contribute enough to occupy a valuable roster slot. Of course, Kansas City would need to pass the out-of-options Bueno through waivers to stash him in the minors.