ANAHEIM, CALIF. • Francis Ngannou retained his UFC heavyweight title with a surprising display of superior grappling in a unanimous-decision victory over previously unbeaten Ciryl Gane at UFC 270 on Saturday night.

Deiveson Figueiredo also beat Brandon Moreno by unanimous decision, concluding a thrilling fight trilogy by reclaiming the flyweight championship belt he lost to Moreno seven months ago.

Ngannou (17-3) defended his heavyweight belt for the first time with impressive perseverance against Gane (10-1), his fellow French citizen.

Both fighters possess incredible power and uncommonly fluid athleticism for big men, but the champion took control of a cagey fight in the third round with the first of several takedowns. Ngannou turned a matchup between fearsome strikers into a wrestling match that showcased his much-improved game on the ground.

The judges scored it 48-47, 48-47 and 49-46 for Ngannou, who had never won a decision in his mixed martial arts career. The Associated Press also scored it 48-47 for Ngannou, the Cameroon-born French citizen who trains in Las Vegas.

Just 10 fights and 3 1/2 years after his professional MMA debut, Gane appeared to have an edge in the first two rounds of his first title fight with superior striking with both fighters showed appropriate caution for each other’s power. Ngannou wore light wraps around both of his knees into the cage, suggesting rumors about his leg health might have credence.

Gane mixed in some spinning kicks with increasing confidence, but Ngannou changed the tone of the fight early in the third when he got an arm under Gane’s leg and lifted the challenger skyward, slamming him down. Gane had never been taken down in his UFC career, but Ngannou did it repeatedly in the third and fourth rounds.