The Rockies have designated Mike Ekstrom for assigment, the team announced (on Twitter). The move creates room on the roster for Guillermo Moscoso.
Ekstrom, 28, allowed 11 runs in 15 2/3 relief innings for Colorado this season, striking out nine and walking two. The right-hander pitched to a 2.64 ERA with 9.6 K/9 and 2.8 BB/9 in 47 2/3 Triple-A innings this year.