While I'm a firm believer that the boosters can cause cardiac issues in otherwise healthy, middle aged men, this was the result of the hard hit to the chest.
When my boys played lacrosse, they were required to wear chest protection due to very rare/odd chance of taking a hard shot to a particular part of the chest that apparently can cause the heart to stop.
Hope the guy makes a full recovery.
The shear number of times that these guys get hit in the chest over the course of a game/season throughout the history of the game of football, and yet this is the first time it caused someones heart to stop would make me believe otherwise. If it were chance, odds of it taking this long to happen would probably be like getting eaten by a shark while getting attacked by a bear and then struck by lightning. It was something else. Maybe he was on meds? No idea...
Regarding the vaccine, we should stop calling it that. "Vaccine" would suggest it prevents something, which it doesn't. As far as the "it lessens symptoms" argument, that's impossible to prove. Eventually it will be a part of the DNA of the species due to people trusting Big Pharma and our corrupt healthcare system enough to inoculate their kids with who knows what...
Good for the stockholders, though. Record profits.