At today's Smackdown occasion in Brussels, Belgium, Christian seemed to have harmed his knee in the midst of a match with Sheamus.
About four or five moments into their match, Sheamus hurled Christian into the ropes. As Christian fell off the ropes, he endeavored to slide under Sheamus' legs and immediately snatched his knee. When he attempted to get up, he limped. As the official approached wiretap him, it was evident that he was harmed. The arbitrator expressed something to Sheamus, who moved to fast hit Christian with the Brogue kick to finish the match.
When the match, the arbitrator gave the X mark as Christian took off of the ring. The official and a part of security encouraged him to the back. It gave off an impression of being Christian's right knee or lower leg that was harmed, and it looked somewhat genuine.