It was surely a let off in that we flapped at the corner and had the ball been 5mm more away from Antonio, it would have been a goal. The ball minutely brushing Antonio prevented our error being punished all be it with the correct application of the rules.
In the opposite scenario, a defender pushes an attacker in exactly the same way Dawson pushes Lallana and I suspect more often than not a penalty would be given.
I thought it was a lot more subtle than that, rather than surround the keeper, they surrounded the front post for the goal and a few of their corners. Even for the chalked off goal, no West Ham player impeded Sanchez.
Interesting debate with 2 West Ham supporting mates last night, one at the ground, one at home watching. Obviously the one at the ground didn't really know why VAR took so long.
I guess we know it was divided into 3 parts: Dawson foul on Lallana, a foul on Sanchez, Antonio offside.
For me...