The demotion of Fields is a vote of confidence for reliever Michael Feliz, who has pitched terrific lately. Feliz allowed one hit across three innings in relief on Wednesday to earn his first big league win. The 22-year-old right-hander has tossed eight scoreless innings in his four outings, surrendering one hit while striking out 13 and issuing no walks.
Fields, meanwhile, has appeared in 15 games and posted a 6.89 ERA, allowing 23 hits and 12 earned runs in 15 2/3 innings.
"Feliz has pushed his way into being a factor in a couple of different roles," Astros manager A.J. Hinch said. "I like having multiple guys down there that can go multiple innings. We've got [Scott] Feldman down there. We've got Feliz down there now, and he's dominated. His last three or four outings have been spectacular. Fields hasn't had a successful start to the season. He's about one click off every outing, it feels like. From a competition standpoint, we feel like Feliz is the right pick."
Brian McTaggart has covered the Astros since 2004, and for MLB.com since 2009. Follow @brianmctaggart on Twitter and listen to his podcast. This story was not subject to the approval of Major League Baseball or its clubs.