Diamondbacks Release Junior Guerra

The Diamondbacks announced Wednesday that they’ve released right-hander Junior Guerra, who’d previously been designated for assignment last Friday.

Guerra, who’ll turn 36 in January, notched a tidy 3.04 ERA in 23 innings this past season, although his 21-to-15 K/BB ratio and 5.03 SIERA tell another story. The righty was a frequent contributor for the Brewers both out of the bullpen and the rotation prior to signing in Arizona. From 2016-19, he pitched to a combined 3.78 ERA in 416 2/3 frames with Milwaukee.

It seemed quite possible given his control troubles in 2020 and what is expected to be a flooded market for low-cost relievers, however, that Guerra could be cut loose. The D-backs carried a $3.5MM club option on Guerra but instead opted for a $100K buyout. They still retained his rights via arbitration — Guerra has four years, 155 days of MLB service — and MLBTR contributor Matt Swartz projected a possible $2.8MM salary for Guerra via that process. Arizona deemed a raise on last year’s $2.55MM salary too steep, however, and Guerra will now be able to explore the market in search of an opportunity with all 30 clubs.