USA TODAY Sports/MMAjunkie Rankings, Dec. 27: Can Ronda Rousey take back her No. 1 spot?

"Mighty Mouse" is entering rarefied air with his current winning streak and UFC title reign. Promotional records are on the line every time he steps in the cage.

"Bones" was flagged for a potential doping violation ahead of UFC 200 and must sit out until July 2016. His skills remain unquestionable, but he's often his own worst enemy.

Cormier was robbed of a chance to avenge his lone career loss when Jon Jones was pulled from UFC 200, but he made the best of the situation with a decision win over Anderson Silva.

McGregor is changing the face of the sport, accomplishing everything he ever promised he would by simultaneously holding two UFC titles – though he's since been relieved of one of those belts.

It's incredible to think Aldo went unbeaten for 10 years, especially since Conor McGregor was able to end that run in just 13 seconds. Still, the Brazilian is now a champion again after a surprise UFC decision to strip Conor McGregor.

Miocic defended his belt on home territory at UFC 203 and now awaits his next assignment. Could he be the man who finally defends the UFC heavyweight belt three times?

Woodley waited 19 months for his title shot, but he made the most of it and dethroned Robbie Lawler via first-round knockout. Stephen Thompson pushed him to the limit in a majority draw, and a rematch is likely next.

It's actually bizarre to consider that "Rumble" once fought at 170 pounds. He was supposed to challenge for the UFC light heavyweight title at UFC 206 but now awaits a new date.

"The Eagle" owns an incredible career mark and is getting more and more vocal about what he wants in the cage. Will Conor McGregor answer his challenge?

Bisping didn't look pretty after his UFC 204 win over Dan Henderson, but "The Count" made a real claim for 2016's "Fighter of the Year" award by defending the UFC middleweight title.

Rockhold admitted he underestimated Michael Bisping, and it cost him the UFC middleweight title. An injury recently pulled him from a fight with top contender Ronaldo "Jacare" Souza at UFC Fight Night 101 in Australia.

One mistake can change an entire career trajectory. Werdum can now attest. He'd hoped for an immediate rematch with Stipe Miocic but instead picked up a somewhat bizarre win over Travis Browne at UFC 203.

Benavidez would likely be champ if Demetrious Johnson didn't have such a stranglehold on the UFC's flyweight division. He hopes a third meeting with "Mighty Mouse" is on the horizon.