Not sure if this applies, but fighting cans is pretty much 90% of boxing so here goes. I was watching a german boxing event (most boxing in europe takes place in Germany) and they brought on up and coming guy that they wanted to give another win for the record. He was a big, ripped, good looking guy that was obviously being hand fed his opponents. On the other side of the ring was a soft, middle aged romanian who was balding and had hints of a gut. It was obvious this was going to be a rd 1 slaughter.
Now, the fight started and it turned out that the romanian guy had so much experience fighting as a can, so he could read the young kid like a book, and just bobbed and weaved as the kid tried to take his head off. He was tagging the guy back, but with no power. Round 2 the young fighter had new instructions, and just went for the gut twice for the TKO. I kept thinking that if this was MMA, the experience this can brought to the ring would have caused the upset of the night.