I watched Brent Stockstill at Middle completely break and dislocate his at Syracuse. He didn’t tell anyone, finished the game and led team to a win. After finding out doctors wouldn’t let him play because of fear of it puncturing a lung.
So it depends on severity but also depends on the person. I would not be surprised if he broke the left collar bone. A shoulder separation would be better since it’s left side. But maybe it was a concussion? He got hit pretty hard on that last pass before half and hit the ground hard. I could see either of those outcomes being the case here.