The Rockies have designated right-hander Jair Jurrjens for assignment, reports Troy Renck of the Denver Post (on Twitter). The move was necessitated by the promotion of first baseman Ben Paulsen, whose contract was selected today. Paulsen will replace Justin Morneau, who has been placed on the 15-day DL with a neck strain.

Jurrjens made a pair of spot starts for Colorado after being acquired from the Reds, but the former All-Star’s results were less than favorable. Jurrjens allowed 11 earned runs in 9 1/3 innings, though he did so with nine strikeouts against just three walks. In 40 1/3 innings at Triple-A this season, the 28-year-old has a 4.02 ERA with 6.2 K/9 and 2.9 BB/9.