The Royals have recalled right-handed pitcher Trevor Oaks from Class AAA Omaha and placed Blaine Boyer on the disabled list because of a right lower back strain.
Oaks last pitched on May 25, throwing seven innings for the Storm Chasers. In nine starts at Omaha, Oaks is 3-3 with a 2.50 ERA.
He’s a fresh arm that arrives a day after the Royals used five relief pitchers in a 2-1 victory over the Twins in 14 innings, and on a day when the starter is scheduled to be Brad Keller, who has been exclusively in relief this season.