The Rockies reinstated Beck (hamstring) from the 10-day injured list Sunday and optioned him to Triple-A Albuquerque.
With no room for him in their crowded outfield, the Rockies will keep the 25-year-old in the minors after he recovered from a hamstring strain. Before being shelved May 18, Beck contributed a .183/.227/.305 slash line with one home run and two stolen bases over 88 big-league plate appearances while mostly serving as a short-side platoon player.