UFC Fight Night 84 is a scheduled mixed martial arts middleweight fight between Anderson "The Spider" Silva (33-6-1, 20 KO's) from São Paulo, Brazil and Michael "The Count" Bisping (27-7-0, 15 KO's) from Nicosia, Cyprus. This card is being broadcast live from the O2 Arena in London, England, United Kingdom.

The scheduled undercard bouts are as follows:

Bantamweight: Brad Pickett vs. Francisco Rivera

Middleweight: Gegard Mousasi vs. Thales Leites

Welterweight: Tom Breese vs. Keita Nakamura