"It was clear and everybody saw it. When the FA view the replay I suppose they'll take action," said Rafa Benitez.
"If the officials had seen it then it could have changed the game. Big money has been spent in the electronics system for the four officials yet nobody could see anything.
"We could save the money spent on that and use it for the academy system because it's not working.
"The officials say to me 'Be careful with the line, be careful with the line', but I don't want to break the line [of the technical area], I want to watch the game.
"I had four players injured in this game - Jose Reina [shoulder], Mohamed Sissoko [knee], Alvaro Arbeloa [ankle] and Xabi Alonso [nose]. It's unbelievable.
"You can use 20 referees, 2,000 cameras and a lot of electronic systems but if you don't want to see it you won't. Unbelievable."