Former Olympic wrestler and MMA star Ben Askren, who has been hospitalized in Wisconsin after a severe case of pneumonia, said in a post on social media Wednesday that he had undergone a double lung transplant and is in recovery.

Mixed martial arts legend and UFC Hall of Famer Randy Couture was airlifted to a burn center Tuesday in Kansas City with injuries stemming from a single car accident at a pro stock car racetrack, sources confirmed to ESPN.