Danny Duffy to miss Friday start

CLEVELAND -- Royals pitcher Danny Duffy will miss his scheduled start against Minnesota on Friday because of tightness in his left elbow.

The injury isn't considered serious and the Royals expect Duffy to start next week against Detroit. He's 1-2 with a 3.63 ERA in three starts.

It's expected the Royals will announce Friday's starter following Thursday's game against the Indians.

Outfielder Lorenzo Cain will likely be sidelined for a month with a strained left hip flexor. Cain was on a minor league rehab assignment while recovering from a strained left groin.