At what level, if at all did Plato practice the martial art of pankration and what direct evidence do we have for believing so?
Pankration is a Greek martial art; a sort of bare knuckles MMA in that there were essentially no rules (eye gouging and biting are forbidden). There are many accounts online from martial art adjacent sources of Plato having been a Pankration practitioner, even somewhat of a champion.
These accounts vary from him having simply practiced the sport; to having been an Olympian. Is this simply a myth? Or is there direct evidence supporting the claim?