West Ham boss David Moyes has slammed the dismissal of Tomas Soucek at the end of their 0-0 draw with Fulham.
The midfielder saw red after a collision with Aleksandar Mitrović.
Moyes rapped: "I thought it was a rubbish decision [to send Tomáš Souček off for alleged violent conduct against Aleksandar Mitrović].
"I don't really know what we can do because it's a closed shop with these things and you find it very difficult to get anything back from the referees or anyone involved in it.
"It was accidental, but I think players have got a responsibility to do the right thing as well, and quite often we're seeing lots of them not, and that makes it hard for the referees.
"It's something that's crept into the game (players going down after minimal contact from their opponents) and the only ones who can stop it are the referees by saying 'no, get on with it, we're not accepting that as being enough contact' and if tonight is the level of contact you need to have to get a red card, my goodness we're going to see an amazing amount of red cards."