Yes it would bad if you popped it,it'll only swell worse. I do not recomend this at all,but if you still want to go,have them wrap your tape as tight as they can to imobilize the thumb so you cant re-injure it during the fight. Also before the commish gets in to check your wraps,bath it in ambesol,it will pre-numb it up,its legal,but the commish is going to want a look at your thumb if they see you doing it.Because the only time you do it is if you know your guy is hurt.
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