There were a couple times in the Maia fight he got hit and didn't look comfortable. I think it was the second shot that Maia landed reasonably clean and Usman's legs looked wobbly before he composed himself a few seconds later. Maia isn't very good of a striker and it makes me wonder whether Usman's chin stands up to a bigger and better puncher on his feet. Usman's best chance seems to be his wrestling, as his striking is subpar. How long can he rely on his wrestling before the chin is tested properly?