Angels prospect Jack Kochanowicz to start in his MLB debut on Thursday

ANAHEIM — The Angels have a new piece to try in their patchwork rotation.

Right-hander Jack Kochanowicz will make his major league debut with a start against the Seattle Mariners on Thursday night.

Kochanowicz will be the 12th pitcher to start for the Angels, who are trying just about anything to fill a rotation that lost Patrick Sandoval, Reid Detmers and Chase Silseth to injuries and/or poor performance.

Kochanowicz is the Angels’ No. 7 prospect, according to MLB Pipeline.