many , many, unfortunately they tend to fizzle out fast, frankie warren was a really good jr. welter, dwight quawi was amazing for his height, doing things no short fighter really did well, hector camacho was a smaller sized lightweight, they say he was listed at 5-7, but most people say he was 5-4 and he fought guys regularly who were 5-10, oh sorry, getting away from your 'stocky' description. tyson of course, frazier wasn't really that small but smaller than many of the guys he fought, generally, head movement seems to prevail over parrying and blocking for really short guys because to block still leaves you way way out of range, that's why guys like tyson mastered it as well or better than anyone in his prime. You want to see what happens when you block and you're short, watch chavez, he took a lot of stupid punches from tall guys, mediocre guys not even in his class, however he had the will and stamina to walk them down, he looked bad for it though.
