The Rockies designated Shreve for assignment Saturday.
In the span of just five days, Shreve has signed a minor-league deal with the Rockies, been selected to the MLB roster, and lost his spot on the 40-man after making one appearance with Colorado. The 34-year-old owns a 2.65 ERA and 0.85 WHIP through 34 Triple-A innings, which could potentially help him draw interest on the waiver wire from bullpen-needy teams.