The White Sox saw another pitcher hit the shelf due to injury on Saturday.
Ahead of their game against the Rays, the White Sox placed reliever Kelvin Herrera on the 10-day injured with a right oblique strain. In a corresponding move, the team recalled right-hander Jimmy Cordero from Triple-A Charlotte.
Entering the 2019 season, Herrera was expected to be a formidable late-game reliever in the White Sox bullpen alongside closer Álex Colomé. While Colomé (20-for-21 in save chances, 2.39 ERA in 37 2/3 innings) has thrived, Herrera has struggled in his debut season on the South Side. The 29-year-old holds a 7.36 ERA in 38 games/33 innings. As things currently stand, his .326 batting average against and 3.82 BB/9 would be career highs.
Herrera's struggles are somewhat suprising when considering how well he pitched (2.44 ERA, 48 games/44 1/3 innings) in 2018. He did struggle after the Royals traded him to the Nationals on June 18, though, perhaps a precursor of what was to come from him in 2019:
Kelvin Herrera in 2018:
|with Royals||with Nationals|
|Innings||25 2/3||18 2/3|
The White Sox claimed Cordero off of waivers from the Mariners on June 7. He previously pitched with the Nationals (22 games, 19 innings) in 2018 and Blue Jays (one game, 1 1/3 innings) in 2019. He holds a career 5.75 ERA in the MLB, but he's pitched well with Charlotte. The 28-year-old has gone 3-1 with a 0.51 ERA in 17 2/3 innings with the Knights, with opponents hitting just .215 against him in 13 outings.