Left-handed reliever Phillip Diehl, a late spring addition from the Yankees in exchange for outfielder Mike Tauchman, was called up by the Rockies on Monday, filling the bullpen void created by Seunghwan Oh being placed on the 10-day injured list retroactive to June 7 with a left abdominal strain.
Diehl, 24, is making his first career appearance on the Major League roster. He has a 2.30 ERA in 27 1/3 innings between AA Hartford and AAA Albuquerque, issuing eight walks and striking out 29 in 23 combined appearances.
Diehl opened the season with Hartford, and after 13 1/3 scoreless innings in which he issued three walks and struck out 12 he was promoted to Albuquerque on May 4. With the Isotopes he allowed seven earned runs in 14 1/3 innings, striking out 17 and walking five.
The Cincinnati, Ohio, native attended his first Major League Spring Training with the Yankees this year. He was originally selected by Yankees in the 27th round of the 2016 First-Year Player Draft out of Louisiana Tech. in parts of four Minor League seasons, Diehl is 16-6 with seven saves, a 2.72 ERA (221.2 IP, 67 ER), 63 walks and 279 strikeouts.
Oh had struggled in 21 appearances out of the Rockies bullpen this year. He is 3-1, but with a 9.33 ERA. The native of Jeongeup, South Korea, was acquired by the Rockies from Toronto on July 26 of last season in exchange for minor league outfielders Chad Spanberger and Forrest Wall, and right-handed pitcher Bryan Baker. He was originally signed by St. Louis on February 26, 2016 following an 11-year career in South Korea and Japan in which he made 571 career relief appearances. In parts of four Major League seasons with St. Louis (2016-17), Toronto (2018) and Colorado (2018-19), Oh has combined to go 16-13 with a 3.31 ERA, 56 walks and 252 strikeouts.