Yankees’ Jake Cousins Dealing With Potential UCL Injury

Yankees reliever Jake Cousins has yet to pitch in the majors this season due to a flexor strain. He’d recently set out on a minor league rehab assignment in hopes of a return in the near future but was pulled from his most recent appearance in High-A with a setback. It’s the second setback in his rehab — he also dealt with a pectoral issue last month — and manager Aaron Boone revealed yesterday that Cousins is now dealing with what “seems to be a UCL injury” (link via Jackson Stone of MLB.com).

The Yankees and Cousins are still in the process of gathering opinions, but it’s an unwelcome development. At the time of the 30-year-old right-hander’s initial forearm/flexor injury in early spring training, imaging showed that Cousins’ ligament was intact (as noted by the New York Post’s Greg Joyce back in February). The pitcher himself told the Yankees beat back then that doctors had said his ulnar collateral ligament “looked great” in the MRIs he’d undergone.

Cousins was quietly excellent for New York in 2024 after coming over from the White Sox in a spring trade that sent cash to Chicago. He wound up pitching 37 games for the Yanks and logged a 2.37 ERA with a huge 34.2% strikeout rate but an unsightly 12.9% walk rate across 38 innings. Cousins had previously seen time in parts of three big league seasons with Milwaukee but bounced from the Brewers to the Astros via waivers before becoming a minor league free agent, signing a minor league deal with the South Siders, and finally making his way back to the majors in the Bronx.

When healthy, Cousins has regularly looked the part of a useful bullpen arm — he just hasn’t been healthy all that often in recent years. Dating back to the 2021 season, the former Nationals draftee has missed time with a biceps strain, elbow effusion/bursitis, shoulder inflammation and a pectoral strain, among other maladies. He’s pitched to a 2.78 ERA in 90 2/3 innings and fanned just shy of one-third of the batters he’s faced since making his MLB debut as a Brewer back in 2021. However, he’s pitched only 169 2/3 innings — majors and minor leagues combined — over the past four-plus seasons because of frequent trips to the injured list.

Most of Cousins’ injuries have occurred while on the major league roster, so despite his limited innings tally in the big leagues, he’ll cross three years of major league service in 2025. That’ll qualify him for arbitration in the coming offseason, although if he’s unable to get on a big league mound this year, his price tag would still be close to the minimum. For now, the hope will obviously be that Cousins can avoid surgery, as a Tommy John procedure or internal brace operation could cost him a year or more. Presumably, the Yankees will have more information on the extent of Cousins’ injury and a treatment plan in the coming days, but it seems unlikely he’ll be able to return to a major league mound anytime soon.