On a tangential note, the match totally looked fixed to me - Tyson was barely throwing any punches. I understand age is not on his side, but he looked plenty spry when he was ducking, weaving and dodging. It seemed to me he could have done better in terms of attacking as well.
Yeah the biggest thing to me, and the commentators mentioned this as well, his legs looked REALLY wobbly.
All your attacking power comes from your legs and hips, so if his legs weren’t stable he didn’t have much attacking power.
I think he gave it everything he had in rounds 1 and 2. Unfortunately, I just don’t think it was ever going to be enough against a moderately trained 27 year old.