If its in the morning of the fight it wouldnt matter, he will still be gaining weight until the fight, another rise of 5 to 10 water weight is no problems by fight time.
Yes it does matter a lot. Lol it means after the weigh in Kovalev cant drink or eat much for the entire night.
That's ****ed up. That's when fighters usually eat, drink and recover and get a good sleep.
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