Sabathia retired after the 2019 season.
Before his retirement he battled health problems such as a bad knee and, at one point, a blocked artery.
He had struggled with alcohol addiction during his career as well which was probably detrimental to his physical health.
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Since his retirement? His time seems to have been spent primarily in the gym and the effects of that were on pretty clear display in this photo, which was verified as legit by his podcasting partner, Ryan Ruocco.
Flip the page to see the pic: