AITA for making my friend cry at a volleyball game

This will include two perspectives, one from mine who made the other friend cry and the other from the friend who got very upset due to the situation.

My perspective: So me and my group of highschool friends went to a park to setup a game of volleyball where it ended up turning more heated than usual. Before the major incident occurred we were playing volleyball for a few hours. We then took a small break where everyone took turns practicing their spikes so it wasnt an actual game. This was when the friend in question, R, ran into the net as my other friend, D, also went into him from the other side of the net and so from my perspective it looked as if R was the one to take down the net. This was when I said out loud "Yo bro!" in a disappointing tone like someone would say when something inconvenient happens. The net falling down ends up hitting another friend, A which causes me to get concerned. After this I see R storm off and sit by himself where he visibly appears upset and I come to find out after the fact that he was crying from it. Some of my friends there said that I was in the wrong for not apologizing but I still feel like im not in the wrong.

R's perspective: So firstly, the day of the volleyball my I was already going through a lot and so my emotions were very high. While some people are practicing spiking, I am practicing blocking so when he goes to spike and he goes to block, I go backwards and D goes forwards onto me. So its me, the net on top of me, then D on top of the net. The net then comes down and I dont get a chance to realize what happened when I hear my name being said with the "yo bro!". P.S. I really dont like getting blamed for things that I didnt do. When I hear this I also see D jump in and blame me for the net falling down when he was the one to take it down. So at this point im feeling bad for A getting hurt and for being blamed so obviously this gets an aggressive reaction out of me. I then turn and see S (other perspective) and the other friends laughing about the situation when I am dealing with my emotions. Its at this point where I decide im gonna go home but this is when A comes to stop me and he convinces me to stay but I tell him that I always get blamed for things in these types of situation. Im convinced to stay but I sit on the sideline as I am not really in the mood which is when I put my shirt over my face and cry for a little before then joining back after I am recovered.

Let me know who is in the wrong for this situation and who should apologize to who.