Alatengheili Beats Castaneda, Eyes Rosas Jr. Next
Alatengheili beat John Castaneda by split decision at UFC Vegas 121 and wants one more fight before 2026.
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Alatengheili survived a split decision scare to beat John Castaneda at UFC Vegas 121 on Saturday night in Las Vegas, and the bantamweight says he wants one more fight before the calendar turns to 2026.
"The Mongolian Knight" came in off a long layoff, having not fought since April 2025, and looked to impose his wrestling from the opening bell. The game plan, he said, "was obviously to mix it up, but within the later first round, I tried to take him down but his takedown defense was phenomenal." He wasn't able to get a good takedown early, but he kept searching for the right opportunity, and finally in the third round he was able to take him down. Castaneda's takedown defense "was definitely a little bit of a surprise to me," Alatengheili added afterward.
The fight went the distance and was ruled a split decision in Alatengheili's favor. Some fans online called it a robbery, but Alatengheili wasn't buying it. "I was pretty certain that I took the second and third round, so I wasn't that concerned when it came to a split decision," he said via translator after the bout.
What's Next for Alatengheili
Alatengheili wants to fight again before the end of the year, and he already has a name in mind. After a long layoff that saw him out of action since April 2025, Alatengheili is now looking to get one more fight in 2026, saying he's hoping for the end of this year, definitely before January. He said the winner of Raul Rosas Jr. vs. Raoni Barcelos was an option he's interested in, and that turned out to be Rosas Jr. "My eye is actually on whoever wins the main event for tonight. Maybe a shot at that, I'm really hoping," he said.
That's an ambitious ask. Rosas Jr. is one of the UFC's more closely watched young bantamweights, and headlining a card already puts him in a different tier of matchmaking priority than a fighter coming off a split decision win over a veteran gatekeeper. Still, the UFC has shown it likes testing Rosas Jr. against varied styles, and a grinder like Alatengheili who hunts takedowns late in fights could make sense as a measuring-stick opponent if the promotion wants to see how Rosas Jr. handles that kind of pressure.
Betting Angle
A quick turnaround fight for Alatengheili before year's end would likely see him open as an underdog against a name at Rosas Jr.'s level, given how close Saturday's win was and the long layoff that preceded it. Bettors should watch how the UFC books him next. A step down in competition would make him a live value play off the back of that third-round takedown surge, while a jump straight into a high-profile matchup carries real risk given how much rust he had to shake off in his return.
Frequently Asked Questions
Who did Alatengheili fight at UFC Vegas 121?
Alatengheili fought bantamweight John Castaneda at UFC Vegas 121 in Las Vegas, winning by split decision.
Who does Alatengheili want to fight next?
Alatengheili said he's interested in facing the winner of Raul Rosas Jr. vs. Raoni Barcelos, which turned out to be Raul Rosas Jr., and he hopes to fight again before the end of the year.
How long had Alatengheili been out before UFC Vegas 121?
Alatengheili had not fought since April 2025 before returning to beat John Castaneda by split decision at UFC Vegas 121.
