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Michael Aswell vs JooSang Yoo: featherweight prelim preview at UFC 331
Tale of the tape and archive form for Michael Aswell against JooSang Yoo, on the prelims at UFC 331 on Sep 19, 2026.
On Saturday, September 19, 2026, UFC 331 brings Michael Aswell and JooSang Yoo together at featherweight on the prelims at crypto.com Arena in Los Angeles, scheduled for 3 rounds. Our schedule tables list 13 bouts on the card; this one is filed under the prelims.
Tale of the tape
Michael Aswell ("The Texas Kid"), 25, comes in at 11-5-0, listed at 5'8", with a 69-inch reach, fighting orthodox. JooSang Yoo ("Zombie Jr."), 32, comes in at 9-1-0, listed at 5'7", with a 71-inch reach, fighting orthodox. On the tape, Aswell has 1 inch of height and Yoo holds 2 inches of reach. Aswell is the younger by 7 years. Both fight orthodox.
- Record: Michael Aswell 11-5-0 · JooSang Yoo 9-1-0
- Age: Michael Aswell 25 · JooSang Yoo 32
- Height: Michael Aswell 5'8" · JooSang Yoo 5'7"
- Reach: Michael Aswell 69" · JooSang Yoo 71"
- Stance: Michael Aswell Orthodox · JooSang Yoo Orthodox
What the archive says
Michael Aswell has 4 completed UFC bouts in the PropBetEdge archive: 1 win and 3 losses. That win came inside the distance. Most recently he lost to Gaston Bolaños by unanimous decision in round 3 on Jun 20, 2026.
- L vs Gaston Bolaños — unanimous decision, R3 (Jun 20, 2026)
- L vs Luke Riley — unanimous decision, R3 (Mar 21, 2026)
- W vs Lucas Almeida — KO/TKO, R1 (Oct 11, 2025)
- L vs Bolaji Oki — unanimous decision, R3 (May 31, 2025)
JooSang Yoo has 2 completed UFC bouts in the PropBetEdge archive: 1 win and 1 loss. That win came inside the distance. He last fought on Oct 4, 2025 and lost to Daniel Santos by KO/TKO in round 2.
- L vs Daniel Santos — KO/TKO, R2 (Oct 4, 2025)
- W vs Jeka Saragih — KO/TKO, R1 (Jun 7, 2025)
What to watch
The 2-inch reach gap in JooSang Yoo's favour is the tape's headline number; it defines the range each man is working from. From our archive, Michael Aswell has finished 1 of 1 archived win and JooSang Yoo has finished 1 of 1 archived win. It is scheduled for 3 rounds.
Algo lean: locked. PropBetEdge model pricing for this bout ships with UFC Pro; no pick is shown until the model has produced one.
Written by the PropBetEdge UFC Desk from PropBetEdge's own fight tables and a stored fact block. Read the editorial policy.
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