i don't think yu'll actually go as far as permanently injuring him,as he's not at all as mindless as he comes off as from his face, he's just outwardly emotionless and unreadable is all, so characters are maybe jumping to conclusions about his true intentions,
it's really curious as to why he's still going this far for boxing though,
it's maybe just related to the glowing guy from his dreams.
someone early on said after reading the series that he's like the one-punch man of boxing, just from the feeling he gives off, and i really have to agree,
i really like his character design, and the bakugou look-alike's design too.