I was in block 10 row Y and the incident happened just to the left, one/two rows behind behind me
One of the guys concerned was getting very abusive and it would appear the stewards in the locality took a while to get up to the situation, despite others located elsewhere noticing and watching it develop!
There was one occasion when the guy got right in the lady's face and starting shouting abuse, and I mean he went nose-to-nose.
She just sat back with a big smile, and pointed to the exit.
Then he stood on the stairs to challenge anyone who wanted to take him on before the chorus of cheerio broke out in the block!
It would also appear that someone had a go at JP?
The two guys at the end were hilarious - one of them had the stewards beat before he almost collided with the other one! Another steward from the Itchen side joined in and took him out superbly and then they all piled in, somewhat heavy handed.
I don't think the several stomps to the back of his kneecaps were necessary.