I picked Kaue before even looking at anything else. Yahya is pretty terrible. Go watch his last fight, he literally was falling over for no reason at all. He's definitely tough, but not good. Kaue should be better literally everywhere and this should be a straight forward win, probably a decision.
Mohammad Yahya
Mohammad Yahya is a patient striker who stands tall and keeps his hands low. He has a traditional martial arts stance so he will stand wide and bounce in and out of range. He has a solid chin and while he likes to plot forward, he doesn't throw very much. He can be a bit low volume and he does fall over for no reason whatsoever but he does have some power. Not much in the way of wrestling offense, but he will look to hold you against the cage if he's losing exchanges. He is coming off a straight forward loss to Trevor Peek in his UFC debut
Kaue Fernandes
Kaue Fernades is a loose and powerful striker who will bounce on his toes, stay outside the pocket and then lunge in with speed and power. Like many fighters at Novau Unaia he has slick BJJ and solid takedown defense as well. He does get flashy with his striking but he's comfortable and when he's focused he can be technical as well. He is coming off a razor thin loss to Marc Diakase in his UFC debut.