The White Sox signed righty Chris Muller to a minor league deal over the weekend, according to an announcement from their Triple-A team. He’s been assigned to their top affiliate in Charlotte.
Muller, 27, has yet to make his big league debut. He received his first major league call from the Rays in May but was optioned back out without making an appearance. After he suffered an injury in Triple-A, Tampa Bay released him. The Rays brought him back on a minor league pact but released him again last week.
A former 17th round pick, Muller is strictly a bullpen option. He’s worked 20 innings across 16 appearances with the Rays’ top minor league club this season, posting a 4.95 ERA. His 24.4% strikeout rate was solid, but he walked a lofty 12.2% of batters faced. It was a similar story the year before, when Muller fanned 28.1% of opponents against a 12.7% walk percentage en route to a 4.91 ERA in 58 2/3 Triple-A frames.
Chicago traded away a number of relievers at the deadline, leading to MLB calls for the likes of Declan Cronin, Bryan Shaw, Edgar Navarro and Lane Ramsey. That thinned the Triple-A depth, making it a fairly sensible landing spot for Muller to look for his initial MLB appearance.