Bisping was chosen to take Munoz's place in the co-main event.
The co-main event was a bout between Vitor Belfort and Anthony Johnson.
The fight served as the co-main event.
During the co-main event, the sound system went out and Alexander had to shout the introductions and results through cupped hands for the remainder of the night.
Sonnen and Munoz have been booked as the co-main event for the Jan. 28 in Chicago.
The bout, which served as co-main event would become a catchweight bout after Escudero weighed in at 159 lb.
The fight was a co-main event and televised on HBO.
Buffer performs 45 and 90 turns before most fights, but reserves the "Buffer 180" for main events and co-main events.
This fight has since taken place and was the co-main event of the UFC 100 card.
As a result, Brenneman fought Story in the evening's co-main event.