So technically he was injured and the changing of shirts was a by the way as a result of the injury, so the ref was wrong even on that one.
A shirt is part of the players equipment - he had to change it. Laws of the game states he has to wait till a stoppage in play until he returns to the field. No ifs, buts, maybe's bla bla bla.
ATWELL was correct on this occasion.
I did not know, 25,000 other fans did not know, the players did not know, the management did not know.
Properly only 4 people knew - maybe we give these guys two much stick when all they are doing is applying the laws of the game.