Alright, so today me and my cousin went to park and some Thailand kids saw me and my friends just grappling and playing around. One of them asked one of us if we wanted to grapple, he was about 17+ at least. At first i said no then later, i decide i will grapple him. ( I'm only 15 turning 16, only MA i got experience is in wrestling. ) He went at me first but i got his legs and take him down, after rolling on floor for bit i saw a open spot to apply rear naked choke while he was on his stomach. I had it apply for about 10-15 seconds and he finally tapped. After the fight he was bleeding from his nose, now i'm positive i didn't get any hit on his nose by accident. Could the bleeding be caused from the rear naked choke?