How Junior Guerra fits the Diamondbacks bullpen

David Kohl-USA TODAY SportsThe first major acquisition of the offseason is signing formerly non-tendered Brewers pitcher Junior Guerra. Guerra was non-tendered by Milwaukee when he was due an estimated $3.5M after a solid year in the Brewers bullpen. Less than a week later, the Diamondbacks swooped in and signed him for $2.55M plus two more years of control for his final two arbitration years should he stick.

Guerra fits the classic mold for the type of pitchers Dbacks GM Mike Hazen has been acquiring: Fastball, Curveball, High Spin rates on both. Last year it was Merrill Kelly out of Korea and this year Guerra, although Guerra will probably spend most of the year in the bullpen. Guerra in…