The Arizona Diamondbacks bolstered their bullpen by signing left-hander Jalen Beeks to a one-year, $1.25 million deal and promoting veteran righty Shelby Miller to the opening day roster. Beeks, 31, had a 4.50 ERA over 71 appearances last season split between the Colorado Rockies and Pittsburgh Pirates, while Miller, 34, impressed in spring training with 11 strikeouts in 6 2/3 innings. Miller returns to the Diamondbacks after a challenging tenure from 2016 to 2018. The team placed Jordan Montgomery on the 60-day injured list due to a serious elbow injury, and catcher René Pinto has been designated for assignment.