Derrick Lewis has 23 victories as a professional mixed martial artist, and 18 of them ended in a knockout.
Aleksei Oleinik has 59 career wins, 46 by submission.
So it's clear what each man will be trying to do when the veteran heavyweights meet in the main event of UFC Fight Night on Saturday at the promotion's Apex facility in Las Vegas. It will be fun watching it all unfold.
The fights are on ESPN+, with the main card starting at 9 p.m. ET and the prelims at 6 p.m.
Lewis (23-7, 1 NC; 14-5 in the UFC) has won his last two fights, including a unanimous decision over Iliri Latifi in February. Lewis, who is No. 6 in the ESPN heavyweight rankings, challenged for the UFC championship in 2018, losing to Daniel Cormier by rear-naked choke -- the only submission loss of Lewis' career.
Oleinik (59-13-1, 8-4 UFC) has won his last two fights, most recently a split-decision win over former UFC champion Fabricio Werdum in May.
The co-main event matches former middleweight champion Chris Weidman against Omari Akhmedov. Weidman (14-5, 10-5 in the UFC) is 1-4 since losing his belt in 2015, with all of the losses coming via knockout. Akhmedov (20-4-1, 8-3-1 UFC) is unbeaten in his last six fights.
How to watch the fights:
Watch the fights on ESPN+. If you don't have ESPN+, get it here.
There's also FightCenter, which offers live updates for every UFC card.
Saturday's fight schedule
ESPN+, 9 p.m. ET
Derrick Lewis vs. Aleksei Oleinik | Heavyweight
Chris Weidman vs. Omari Akhmedov | Middleweight
Darren Stewart vs. Maki Pitolo | Middleweight
Yana Kunitskaya vs. Julija Stoliarenko | Women's bantamweight
Beneil Dariush vs. Scott Holtzman | Lightweight
ESPN+, 6 p.m. ET
Tim Means vs. Laureano Staropoli | Welterweight
Kevin Holland vs. Joaquin Buckley | Middleweight
Nasrat Haqparast vs. Alex Munoz Muñoz | Lightweight
Andrew Sanchez vs. Wellington Turman | Middleweight
Gavin Tucker vs. Justin Jaynes | Men's featherweight
Youssef Zalal vs. Peter Barrett | Men's featherweight
Irwin Rivera vs. Ali Al-Qaisi | Men's bantamweight
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