The Twins have an open spot in their rotation Friday at Detroit after starting pitcher Pedro Hernandez was optioned to Triple-A Rochester Monday. MLB.com reports Cole De Vries, who was optioned to the minors May 18, is not an option, leading to speculation pitching prospect Kyle Gibson is a strong candidate to be promoted from Rochester.

Gibson took a no-hitter into the eighth inning of his last start Sunday against Lehigh Valley. He finished with his second complete-game shutout in his last three starts and would be on regular rest to start Friday.