Maybe he doesn't realise the enormity of what he did. I'm sure sure there is a family out there ever so grateful and of course the poor lad who took unwell.
If you're first aid trained you know you're doing it to save lives. He'll probably come forward, but some folk don't want the fuss.
Football banter is football banter. But this guy saved another guy's life. Top marks to the fella. I hope that if I were ever to find myself in the same situation as he did I would have the ability and the ******** to do as good a job.