The match shown here of Denis and Michael in this match Denis was tired and sick.......he literally crushed Michael very badly in one other match when he was fresh......
He, Andrey, and Denis were the ones who originated this new world of inhuman monsters of arm wrestling. Dave has an ultra wide hand and his wrist is essentially as strong as his arm when you pull against him it's like your hand collapses even if his wrist bends back it's so hard to hang on to him.