An undisclosed injury has forced Alistair Overeem to pull out of his UFC 160 co-main event bout against Junior dos Santos. 
The news of Overeem pulling out of the fight was originally reported by MMA Fighting and TheMMAReport.com has been able to confirm this news with sources.
This is the second time that the UFC has booked this bout as they were originally scheduled to meet at UFC 146 last year.
The former Strikeforce champion has confirmed the injury on Twitter and said he has a slight tear in his quad.
“Injured! Caught a slightly tear in my quad muscle so unfortunately out of may 25’s UFC,” Overeem tweeted. “Not happy to let you guys ‘the fans’ down!”
Overeem (36-12, 1NC) was recently defeated by Antonio “Bigfoot” Silva at UFC 156 by TKO in the third round and it was his first defeat since 2007. Prior to the fight with Silva, he had won eight in a row and was 10-0, 1NC in his last eleven fights.
With Overeem off the card, it’s unknown if Dos Santos will stay on the card or if they will reschedule this fight for later in the year. If the UFC elects to keep Dos Santos on the card, a potential opponent for him would be Mark Hunt.
UFC President Dana White was asked about the situation on Twitter and it appears that the UFC will reschedule Overeem and Dos Santos to later in the summer.
@capnhancock @markhunt1974 @junior_cigano not lookin good. Cigano vs Overeem in the summer
— Dana White (@danawhite) March 7, 2013
Dana’s tweet will disappoint the fans of Hunt, who had already began a Twitter campaign to get Hunt into the co-main event slot against Dos Santos at UFC 160.
Hunt (9-7) is currently on a four fight winning streak and this is the current longest winning streak in the UFC heavyweight division. After his win last weekend over Stefan Struve, Hunt stated he would like to face a top five opponent in his next fight. With all of the top UFC heavyweights already booked for fights, Hunt will have to wait and see what happens in the heavyweight division over the next 2 months to see who he will face next.