Rockies designated RHP Michael Lorenzen for assignment.

The Rockies are pulling the plug on the Lorenzen experience with six weeks left in the season after he was torched for six runs over 3 2/3 innings by the division-rival Giants last week. The well-traveled 34-year-old struggled to a bloated 7.08 ERA, 1.88 WHIP and 82/49 K/BB ratio across 115 2/3 innings in his Colorado debut.