I retired from football at age 20 due to my 5th concussion, it was during a game playing for MHSOB, it was my worst head knock and my front tooth smashed in the process. The hit so severe I woke up freaking out because I didn't know where I was and back in those days if you could walk, you went back out on the field. It was actually the dentist who encouraged me to see a doctor, he said I should have stopped after the fourth concussion but when you're young, you're fearless, if not slightly stupid. I loved playing football, I didn't even mind being hit because I naively thought it was just like a bruise and would disappear in time for the next game. Fast forward 30 years and I'm becoming forgetful, often can't remember names & dates, although it's difficult to know if that's a symptom of old age. I certainly don't regret retiring early, I'm also thankful my dentist took concussion seriously because had it not been for that intervention a potential 6th concussion could have had serious ramifications. There's more to life than kicking a Sherrin around a park, that goes for cricketers as well.