UFC on ESPN 31 Weigh-in Results: Main Event Set; 1 Fight Canceled

for the legend @JoseAldoJunior. Tomorrow's main event is

[ #UFCVegas44 | Tomorrow | | Live on @ESPN ] pic.twitter.com/C9AUYnOR4k

— UFC (@ufc) December 3, 2021

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The Ultimate Fighting Championship returns after a rare week off for its first of three December cards.

All fighters made weight for UFC on ESPN 31, including headliners Rob Font and Jose Aldo in a pivotal bantamweight bout. However, Jared Vanderaa wasn't medically cleared for his bout against Azamat Murzakanov, and the fight was canceled as a result.

After dropping three straight fights to top competition in Alexander Volkanovski, Marlon Moraes and Petr Yan, Aldo (30-7) has finally found his footing at bantamweight. "Junior" has won two straight decisions over Marlon Vera and Pedro Munhoz. The former featherweight king will look to cement himself as a contender by making it three straight. Aldo stepped on the scale at 136 pounds, taking full advantage of the one-pound allowance.

Undefeated since December 2018, Font (19-4) has put together four straight wins. After beating Sergio Pettis and Ricky Simon by decision, the Boston-based fighter picked up a TKO victory over Moraes. Font followed that up with a five-round decision over Cody Garbrandt. The 34-year-old officially weighed 134 pounds for his second UFC main event.

UFC on ESPN 31 will air in its entirety on ESPN and ESPN+ on Saturday. Prelims begin at 7 p.m. ET/4 p.m. PT, while the main card kicks off at 10 p.m. ET/7 p.m. PT.

UFC on ESPN 31 Weigh-in Results:

Rob Font (134) vs. Jose Aldo (136)
Rafael Fiziev (155.5) vs. Brad Riddell (155.5)
Jimmy Crute (205.5) vs. Jamahal Hill (205)
Clay Guida (155) vs. Leonardo Santos (156)
Brendan Allen (185.5) vs. Chris Curtis (185)
Mickey Gall (170.5) vs. Alex Morono (170.5)
Maki Pitolo (184.5) vs. Dusko Todorovic (185.5)
Manel Kape (125.5) vs. Zhalgas Zhumagulov (125.5)
Bryan Barberena (170.5) vs. Darian Weeks (170)
Jake Matthews (170) vs. Jeremiah Wells (170.5)
Mallory Martin (115) vs. Cheyanne Vlismas (115.5)
William Knight (206) vs. Alonzo Menifield (205.5)
Chris Gruetzemacher (156) vs. Claudio Puelles (155)
Azamat Murzakanov (216.5) vs. Jared Vanderaa (265)*
Vince Morales (135.5) vs. Louis Smolka (135.5)

* Vanderaa was not medically cleared and the bout has been canceled.