I had my nose completely demolished during a soccer game when I was 13. That was the year I quit, heh. luckily mine went back into shape really easily (Me and Marsha Brady, y'all) but other girls...notsomuch.
If his nasal shape has changed, its due to breakage and resetting. Career athletes who routinely face balls/elbows/knees flying at their faces don't usually bother with this type of thing. No even the pretty ones.