Mike Chiappetta reports:
Newly crowned champ Cain Velasquez will be out of action for six to eight months with an injured shoulder, sources with knowledge of the situation told MMA Fighting.
UFC president Dana White subsequently confirmed the news to MMA Fighting following Wednesday's UFC 125 press conference at the MGM Grand Hotel.
Top contender Junior Dos Santos has been waiting for his promised title shot since beating Roy Nelson at UFC 117.
Expectations had been that Velasquez would defend his title against Dos Santos at the UFC's Toronto debut in April.
For those who have been following the Brock Lesnar rumor watch, this only gives the former champ more leverage to use in his negotiations with the UFC.
In the past the UFC has installed interim champions when reigning champs have been out for extended periods, most recently Shane Carwin held the interim title when Brock Lesnar was out with an illness.