3 years agoOakland Athletics right-hander Daulton Jefferies was diagnosed with thoracic outlet syndrome on Friday. Jefferies was initially thought to be dealing with biceps tightness after allowing seven runs in his Wednesday start but further testing revealed a more severe issue. His Friday diagnosis is not good news for the 26-year-old, who will likely need to undergo surgery. The average recovery time is at least 11 months, meaning that Jefferies would be sidelined until sometime after the 2023 season begins. Jefferies has made eight starts in 2022, posting a 1-7 record, 5.72 ERA, 1.37 WHIP, and 28 strikeouts over 39 1/3 innings of work.--Matt T - RotoBaller
Source: Matt Kawahara on Twitter