Shane Carwin-Roy Nelson bout off
Former UFC interim heavyweight champion Shane Carwin has suffered a knee injury and will not face Roy Nelson on Dec. 15, promotion president Dana White said Wednesday.
It is not yet known which knee Carwin injured. UFC is seeking an opponent for Nelson.
"Wow! It never ends; Carwin blew his knee out," White said on Twitter.
Carwin has been out of action since June 2011, when current heavyweight titleholder Junior dos Santos defeated him by unanimous decision.