Fabià Sintes and Michael Aljarouj are getting the welcome-to-the-UFC treatment the spicy way: against each other, in Paris, with two European flyweight belts dragged into the Octagon. Paris has already given the UFC some weird and memorable fallout, including Caio Borralho’s rough UFC Paris performance becoming ammunition for Sean Strickland, and the Sept. 5 return now has another 125-pound scrap with actual regional-champion heat behind it.
Spanish reporter Álvaro Colmenero reported the booking below:
🚨BREAKING🚨: Fabià Sintes (11-3)🇪🇸 will face Michael Aljarouj (13-3) 🇫🇷 at UFC Paris on September 5 in the flyweight division.
This will mark the UFC debut for the Spanish WOW champion and the French Hexagone champion, both of whom compete in the flyweight division.
— Álvaro Colmenero (@KOlmeneroMMA) July 13, 2026
The matchup is expected for UFC Paris on September 5, with Sintes entering at 11-3 and Aljarouj listed at 13-3. That is not some random newcomer shuffle buried in the weeds. It is the UFC taking the Spanish WOW FC champion and the French Hexagone MMA champion, putting them in the same flyweight cage, and telling both guys to prove who belongs first.
Two Champions Are Walking Straight Into A Flyweight Sorting Machine
Sintes brings the cleaner recent run. The 31-year-old Spaniard has won six straight fights, a streak that includes winning the WOW FC flyweight belt and defending it twice. WOW FC carries extra attention because of its connection to Ilia Topuria, whose own orbit has stayed loud after Anthony Joshua said Topuria’s Gaethje loss changed how he handles fight-camp distractions. Sintes is not Topuria, obviously, but coming out of that Spanish scene with a belt and a UFC debut is enough to make people look twice.
Aljarouj gives the Paris crowd the local side of the equation. The 28-year-old French flyweight is the Hexagone MMA champion and had been chasing a sixth straight win before his last bout with Romero dos Reis turned messy. Aljarouj initially lost that Hexagone MMA 26 main event, but the result was later overturned to a no contest because of an illegal blow. That leaves him walking into the UFC with momentum still alive, but not exactly wrapped in bubble wrap.
The UFC has leaned into Paris as a proper fight city since its first France event in 2022. French fighters have also carried the room well in recent years, and the promotion keeps feeding that market names with local pull. Aljarouj fits that perfectly. Sintes, meanwhile, gets the fun villain-or-party-crasher lane if he beats the French debutant in front of a Paris crowd that probably will not be whispering politely.
There is a matchmaking reason this works, too. Flyweight is the kind of division where one clean debut can matter quickly because the margins are brutal. Sintes and Aljarouj are both experienced enough to skip the soft-launch treatment, but neither is protected enough to demand a ranked opponent right away. So the UFC gets a tidy answer: one new European champion walks out of Paris with a real launch pad, and the other immediately learns there are levels to this game.
The wider 125-pound picture is not exactly standing still either. When Kyoji Horiguchi re-signed with the UFC after vacating his RIZIN title, it showed how much value the promotion still sees in proven lighter-weight champions, and every new flyweight who shows up with a belt on the resume is trying to crash that same ladder. Sintes vs. Aljarouj is a smaller fight on paper, but it is exactly the sort of opener that can turn into a banger if both guys treat the debut like a title fight. Two champions enter, one UFC flyweight gets the first shove forward.
