CC SABATHIA IS ABSOLUTELY SHREDDED NOW!!!
The former Yankees pitcher -- famous for throwing fastballs at close to 300 pounds for most of his career -- is getting SWOLE now that he's retired ... and the photographic proof is wild!
Check out a pic of CC in a tank top ... the 39-year-old is looking slim as hell, with his arms cut up and huge!!
And, we know what you're thinking ... but according to CC's podcast partner, Ryan Ruocco, the pic is both recent and NOT photoshopped!!!
It's crazy .