UFC on Fox 2: Mark Munoz Out, Michael Bisping in vs. Chael Sonnen: UPDATED

UFC on Fox 2 has undergone its first major change. Dana White tweeted today that Mark Munoz is injured and out of his fight against Chael Sonnen.

Instead, Michael Bisping, who was already on the card against Demian Maia, will face Chael Sonnen, and the winner will face Anderson Silva for the middleweight title.

According to White's Twitter:

"Munoz is injured and out of the FOX fight! Now it's Chael Sonnen vs Mike Bisping jan 28th and the winner will fight Anderson for the title."

This is huge news for the Fox card, and for the middleweight landscape in general.

Mark Munoz is a wrestler with good power on the feet, and would have presented a good wrestling challenge to Chael.

However, Bisping is perhaps the most technical boxer in the division, and has some of the best takedown defense in the UFC.

It will be very interesting to see how Sonnen's wrestling fares against Bisping's takedown defense and boxing.

In this fight, we may finally get to see some of Bisping's ground game, and see how well-rounded he really is.

Not only is it a more interesting stylistic matchup, but this is also Bisping's first fight against a true top contender. Many questions will be answered about him against Chael.

Not to mention that these are two of the best trash-talkers in the business. Expect to hear something from Uncle Chael soon.

Should Sonnen win, it will set up the biggest rematch in UFC history, which would be likely to take place in a soccer stadium in Brazil.

However, if Bisping pulls out the victory, he will get a chance to face Silva, as he remains one of Silva's last few challenges in the division.

UPDATE: Josh Gross details the injury that occurred to Mark Munoz,

"Munoz injured his right elbow Fri. Got tangled up in a keylock-like position & it popped. UFC flew him to Vegas. Cortisone shot didn't help."

UPDATE: The third fight has been announced via Dana White's Twitter.

"3rd fight in the FOX Jan 28th is Maia vs Undefeated Chris Weidman!!!"

Stay tuned to Bleacher Report for all the updates on UFC on Fox 2, and all of MMA, that you need.

Tim McTiernan is a Featured Columnist for Bleacher Report. For the latest news on everything MMA, follow me on Twitter @TimMcTiernan.