Dana White just posted the following via 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."

Sonnen and Bisping can't stand each other in real-life so the buildup should be great. This is also what many people wanted in the first place. The fight will take place next weekend on FOX and is headlined by Rashad Evans vs. Phil Davis with the winner going on to face Jon Jones.