I don't know, I just look at MacKinnon, Makar, McWahvid and Spearsaitl playing 25 minutes a night and consistently being game breakers for such a long season and it tells me that unless these dudes are just superhumans, even athletes are capable of a greater body of work than we think they are.
If fatigue was the overriding factor some are making it out to be, those players should be out of gas well before playoffs with how much they play.
And yet, that's not the case.
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