It was clear Thiago Santos was hobbled during much of his split-decision loss to Jon Jones at UFC 239 due to an issue with his left knee. On Monday, his manager Alex Davis revealed the startling extent of Santos' injury.
The Brazilian tore the ACL, MCL, PCL, and meniscus in his left knee, Davis confirmed to ESPN's Marc Raimondi after Santos' test results came back.
The light heavyweight likely won't fight for the rest of 2019 and beyond, according to Davis.
Despite the injury, Santos was the first fighter to sway a judge's decision against Jones during the champion's 26 career fights.
"I left everything in there even after injuring my knee in the first round," Santos said at the presser, through a translator. "I fought four rounds on a southpaw stance, unable to move like I usually move, unable to throw the strikes I usually throw.
"I didn't shock the world because of those circumstances, but I did what I could do in those conditions and I'm satisfied."
While some believed Santos did enough to win the 205-pound title, UFC president Dana White shot down a potential rematch after the event, calling the judges' split-decision ruling "nuts."