UPDATE #3: Cain Velasquez is scheduled to undergo surgery on Thursday, expected back in action by March. More details here: Cain Velasquez Scheduled For Knee Surgery On Thursday, Expected Back In March

UPDATE #2: Fabricio Werdum describes how he found out about UFC 180 opponent change, shares his in-depth analysis on facing Mark Hunt instead of Cain Velasquez. Read this article via the following link: Fabricio Werdum On Fighting Mark Hunt: “I Have To Be Careful”

UPDATE: UFC has issued an official press release with comments from Cain Velasquez, Fabricio Werdum and Mark Hunt all sharing their opinions on the changes to UFC 180, which now features Werdum vs. Hunt for an interim UFC Heavyweight Championship. You can read those comments via the following MMANews.com link: Velasquez, Werdum, Hunt Comment On UFC 180 Changes, Interim Heavyweight Title

ORIGINAL STORY:

Kevin Iole of Yahoo Sports just tweeted that UFC Heavyweight champion Cain Velasquez has suffered a knee injury and won’t be able to fight Fabricio Werdum at UFC 180 on November 15th from Mexico City, Mexico.

#4 ranked Mark Hunt will step up to fight Werdum in the new main event of the show.

This story is developing – we’ll post an update here when it becomes available.

Cain Velasquez injures knee, out of UFC 180. Mark Hunt to fight Werdum for interim title. Story soon on Yahoo Sports — Kevin Iole (@KevinI) October 22, 2014

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