Ultimate Fighting Championship (UFC) Lightweight contenders Benoit Saint Denis vs. Mauricio Ruffy will collide this weekend (Sat., Sept. 6, 2025) at UFC Paris inside Accor Arena in Paris, France.
Hype and momentum can do funny things to public perception. It wasn't that long ago that Benoit Saint Denis was favored over Dustin Poirier and then actually looked the part for about seven minutes, beating up "The Diamond" on the canvas before eating a check hook from hell. Since then, "BSD" hasn't looked quite so terrifying, and his last showing against the unheralded Kyle Prepolec didn't inspire confidence even if he ultimately got the victory. Now, Saint Denis is a considerable underdog opposite Ruffy, the new prospect in town. Ruffy hasn't beaten anyone particularly great yet, but he's looked damn good in his trio of UFC victories, showing the kind of power and slickness that doesn't come around often.