Rockies optioned RHP Seth Halvorsen to Triple-A Albuquerque.

Halvorsen heads back to the minors with Jimmy Herget coming off the injured list prior to Wednesday’s showdown against Chicago at Wrigley Field. The 26-year-old former high-leverage arm has posted an encouraging 3.31 ERA despite a worrisome 16/14 K/BB ratio across 16 1/3 innings for the Rockies this season.