Jake Atlas was injured during the AEW Rampage TV tapings that took place after Dynamite went off the air.
According to a report from Pwinsider, Atlas injured his knee during his match against Adam Cole. The injury came when Atlas was trying to execute a springboard from the apron into the ring when he was superkicked by Cole. Atlas immediately went down and grabbed his knee. When he tried to get up, he had trouble putting weight on the knee. When Cole tried to hit the Panama Sunrise, Atlas was unable to take the spot. They then went to a quick finish where Cole put him in a kneebar and Atlas tapped.
Following the match, Atlas was helped to the back by several AEW officials. There is some talk that Atlas blew out his knee. As of this writing, there is no word on how serious the injury is.