There was a fairly long piece on youtube (can’t find it anywhere now) about the old Vikings playing in the cold. (Early 70’s??)
One of the guys said that they would come out in the freezing cold and pick at the scabs on their elbows so the blood would be running down their arms when they lined up for the first play!
And “about the middle of the third quarter, like clockwork, the wind would start to blow coming in from the north. Our bench would start chanting “Odin. Odin. Odin” (the Norse god of war) as the cold wind picked up.”
The Vikings had the best home field advantage in football at the old Metropolitan Stadium, especially since Bud Grant wouldn’t allow heaters on the sideline. Some teams were beaten before the ball was ever kicked off back in the day.