What Jan did different was attempting TDs while Izzy was leaning, leaning being a big part of Izzys defence. While leaning is great in striking sports, it leaves a persons feet planted while being off balance which made Jans TDs easier to land. Im stumped how Martin constantly failed to take advantage of this as he had Izzy in the same spots multiple times after his one-twos. Its apparent in the clip in the OPYep, this is what I was thinking too. He's just fighting safe so he doesn't give an opportunity to get taken down, and we know that's what Marvin was looking for especially after the Jan fight. Israel fought smart.