The Rockies on Saturday started to set up their second half, sending down rookie right-hander Antonio Senzatela and calling up lefty reliever Zac Rosscup.
Senzatela’s move isn’t exactly a demotion. The Rockies will set up the 22-year-old to build back into a multi-inning length at Triple-A Albuquerque, pitching him as a starter in a series against the host Las Vegas 51s this week. He was moved to the bullpen more than two weeks ago to help preserve his arm.
Senzatela was suffering from tiredness, his manager said, in his first full season after jumping from an abbreviated Double-A campaign last year.