Danny Duffy is headed to the disabled list with an oblique strain and is expected to miss the next six to eight weeks, the Kansas City Royals have announced.

Duffy suffered the injury covering first base on Sunday.

"This stinks man. I'm very bummed out today," he said. "The boys are going to pick me up. I'll be fresh and ready to go in six to eight (weeks). I'm going to try to come back sooner than that."

Duffy is 4-4 with a 3.54 ERA and leads the Royals in innings pitched.