ORLANDO, Fla. – In a battle of debuting heavyweights, it was the massive Francis Ngannou who made a lasting impression, scoring a devastating knockout of Luiz Henrique . The heavyweight bout opened today’s UFC on FOX 17 event at Amway Center in Orlando, Fla. It streamed on UFC Fight Pass ahead of additional prelims on FOX Sports 1 and the FOX-televised main card. Ngannou opened with a few crushing leg kicks, but Henrique was able to catch one and trip the action to the floor