WWE World Champion Seth Rollins tore his right ACL, MCL and meniscus on Wednesday night in Dublin, Ireland while wrestling Kane.  You can see the moment when he got injured in the video above. The injury is expected to keep Rollins out of the ring for 6-9 months. Here's the statement from WWE.com

"Seth Rollins has torn his right ACL, MCL and medial meniscus, and will not be able to defend the title against Roman Reigns at Survivor Series. A tournament to determine a new champion will instead take place at the event."

The injury to Rollins comes at a bad time for the WWE since John Cena is on vacation until December and Randy Orton is also out for a length of time due to an injury as well. Here's a pic of when Rollins tore is ACL courtesy of ESPN's Jonathan Coachman: