Reds prospect LHP David Holmberg was hammered for six runs on six hits and a walk on Sunday for Triple-A Louisville. The 22-year-old left-hander managed to record just one out before he was chased from the game. Holmberg posted a 2.75 ERA in 157 1/3 innings at Double-A Mobile last season and even made an uneventful spot start in the majors for the Diamondbacks. He was acquired by the Reds during the offseason as part of a three-team trade and provides the organization with left-handed rotation depth in the high minors.

Reds optioned LHP David Holmberg to Triple-A Louisville. Holmberg was slowed by injury in camp but never had a real shot to make the Opening Day roster, anyway. He'll be part of Louisville's rotation.

FOX Sports' Ken Rosenthal reports that the Reds will acquire left-hander David Holmberg from the Diamondbacks in a three-team trade. The Rays are the third team in the trade and are set to acquire Ryan Hanigan. Heath Bell is also said to be involved in the deal, though it's unclear where he's headed. Holmberg, 22, posted a 2.75 ERA over 26 starts this season in Double-A and made his major league debut in August. He could have a future as a backend starter.

Diamondbacks optioned LHP David Holmberg to Double-A Mobile. Holmberg allowed three runs over just 3 2/3 innings Tuesday in his major league debut against the Padres. The young left-hander may get another try in September.

Making his major league debut, David Holmberg lasted 3 2/3 innings and allowed three runs Tuesday in a no-decision versus the Padres. Holmberg may have a future in the majors, but the Diamondbacks should have plenty of better rotation options going forward. It'd be a bad idea to give him any additional starts this year.