Josh Roenicke was perfect for 1 1/3 innings out of the pen Monday against the Tigers. Roenicke was awfully valuable out of the pen for the Rockies last year, throwing 88 2/3 innings with a 3.25 ERA, but they decided to waive him over the winter. Claimed by the Twins, he has a 1.50 ERA in 12 innings so far this year. Meanwhile, the Rockies' bullpen imports have ERAs of 6.75 (Wilton Lopez) and 8.53 (Chris Volstad).