Former UFC heavyweight champion Ngannou -- considered the lineal champion since he held the title when exiting the promotion -- faces 2023 PFL heavyweight champion Ferreira. "Problema" earned a shot at "The Predator" by knocking out Bellator heavyweight champ Ryan Bader in 21 seconds.

Start time: event begins at 1:30 p.m. ET Fight time (approximate): main card fights begin at 4 p.m. ET The PFL Battle of the Giants: Brace For Impact main event includes the heavyweight world title bout between Francis Ngannou and Renan Ferreira,

The countdown is on for one of the biggest MMA events of the year, PFL Battle of the Giants. The main event is a huge one. After two years away from the cage, Francis Ngannou will make his PFL debut when he takes on Renan Ferreira for the organisation’s Super Fights heavyweight title.