Colome was assigned to minor-league camp on Saturday, Jessica Camerato of MLB.com reports.
Colome could theoretically have earned save chances in Washington this season with the team open to using Kyle Finnegan in more of a fireman role, but instead, the veteran won't even earn a roster spot. He didn't help his case this spring, posting a 5.59 ERA, 1.97 WHIP and 7:7 K:BB in 9.2 innings.