Wolves red card for Collins absolutely correct. I am slightly sympathetic as he wasn’t really looking at the man. My question is why was that a red and haaland who kicked someone in the head in this game, when he could see the player, but not a red??
It's the amount of momentum/force in the challenge. Collins was moving at speed directly towards Grealish, and he jumps into it meaning all his momentum is being transferred at the point of contact. Haaland just lifted a foot up trying to control the ball, he wasn't moving at speed, he didn't jump into it - the amount of force was minimal.