The Royals recalled right-hander Michael Mariot and left-hander Donnie Joseph from Triple-A Omaha on Monday.
Collins, who walked two and gave up a hit while retiring only one batter against the Chicago White Sox on Sunday, is out with a flexor strain in his left elbow.
Bueno, who allowed a double and a single while getting two outs Sunday, has a sprained little finger on his left hand.
- Sports & Recreation
- Kansas City Royals
- Tim Collins
- Francisley Bueno
- Donnie Joseph
- Chicago White Sox