Following UFC on ESPN 61, the USA TODAY Sports/MMA Junkie rankings required updating.
In the main event at the UFC Apex in Las Vegas, Serghei Spivac got one back on Marcin Tybura, winning their heavyweight remach by submission in the first round.
Entering the week at No. 9 in the heavyweight rankings, Spivac switches spots with Tybura, who came in at No. 8.
Check out all the latest pound-for-pound and divisional USA TODAY Sports/MMA Junkie rankings above.