Hello, by the way!
You said their yesish profession is relevant. Are they a professional athlete? Amateur? irrelevant Is it relevant what their sport is? yes Are they actively participating in their sport when this happens? yes Are they perhaps training instead? no Or is it somehow relevant that they're an athlete, but at the time of their being knocked unconscious and then attacked they're not actually doing anything related to their sport? (I just had an idea of a celebrity athlete being out for ice cream, getting mobbed by rabid fans who accidentally knock them unconscious, drag them to a field, and leave them there in a fit of shame and guilt. Although I suspect this isn't what's happened.) A most lateral example, but the answer is no
Is the field an actual dirt/grass/field-y sort of field? yes Or is it a sports field? no
Welcome back. Nice to see you again.
Does the puzzle happen in modern times and surrounding? yes Is there an audience? no; nobody is around When the athlete was knocked unconscious, were they bleeding? Most probably; not relevant, though
Did the ants effectively cauterize any bleeding? no
Athlete: H/A/M? yes/yes/irrel
(I have an idea and am sending a PM.) You are correct!
Was he on a sports field? no Was he a footballer or anyone who kicks, hits or throws a ball? no Was he a jumper yes (long, pole, high etc) but nothing like this Did he throw anything (javelin, shot put, caber etc) no