once you take a closer look at their ears you can't unsee it

Boxers normally have cauliflower ears or puffed up ears due to repeated punches and stuff like that. I personally thought that was a cool detail

Oh I didn’t know that; that’s actually pretty neat the author included that.

Oh wow,i got to know something new.I always wondered why his ears looked like that,thought it to be just the author's taste maybe