Connor McDavid proved he's got hands on Thursday ... the NHL star shockingly started throwing haymakers aimed squarely at his opponent's face during an on-ice melee -- and it was intense!
The one-on-one went down after a small fight erupted at the end of the second period of the Edmonton Oilers vs. Dallas Stars game at the American Airlines Center.
Broadcast footage showed McDavid going right at Stars role player Justin Hryckowian during the fracas, yanking on his black and green jersey while throwing left-handed jabs at his face.
Both players fell to the ice, but got right back up and continued fighting -- with McDavid doing most of the swinging in the exchange.