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Ruffy vs. Tsarukyan: Can the 'Ronaldinho of MMA' Crack a Top Contender?

Mauricio Ruffy carries 13 KOs in 14 wins into a UFC 331 co-main against #2 lightweight Arman Tsarukyan. His old coach thinks flair beats pedigree.

By FightSplit Editorial Team · Published Sep 18, 2026

Arman Tsarukyan in the Octagon ahead of his UFC 331 co-main event
FightSplit

Saturday's UFC 331 co-main event pits No. 7-ranked lightweight Mauricio Ruffy against No. 2 Arman Tsarukyan, and it's the kind of matchup that either launches a contender or exposes one. Ruffy walks in at 14-2 with a jaw-dropping 13 of those wins by knockout and not a single submission on his ledger. Tsarukyan, meanwhile, sits at 23-3 and has spent years knocking on the title door.

Ruffy's former Fighting Nerds coach, Flavio Alvaro, made his pitch to Sherdog on Tuesday, comparing his old charge to Ronaldinho, the Brazilian football icon known for improvisation and creative flair. Alvaro spoke fresh off watching another Fighting Nerds product, featherweight Jean Silva, pick up his seventh UFC win in Arizona. It's a good week to be talking up the gym's stock.

The Stylistic Gap

The numbers frame the clash cleanly. Ruffy is a pure finisher — a 13-KO man who most recently blitzed Michael Chandler in the first round. Tsarukyan is the grinder's grinder, with six of his career wins by submission, including a Round 2 arm-triangle over Dan Hooker in his last outing. One man wants to keep it standing and swing for the fences. The other wants to drag it to the mat and squeeze.

That's the entire subplot of this fight. Ruffy has never had to survive a wrestler of Tsarukyan's caliber, and his flawless finishing rate hasn't been tested against elite grappling. If the Armenian gets ahold of him, that zero in the submission-defense department becomes a very real problem.

What's Actually at Stake

For Tsarukyan, this is a firewall. He's the No. 2 lightweight and one clean win away from staying in the title conversation, so anything short of a dominant performance against a fighter ranked five spots below him reads as a stumble. Ruffy has the opposite math: he's the underdog with nothing to lose and a highlight reel that makes him dangerous every second the fight stays vertical.

Alvaro can call Ruffy the Ronaldinho of MMA all he wants — flair is a genuine weapon, and Ruffy's power is real. But Tsarukyan is the toughest test of his career by a distance. Saturday tells us whether the hype is a nickname or a résumé.

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