The England right-back was fuming as he claimed he did not touch the Ecuadorian, whom he accused of cheating.
"I've watched it 50 times - not that I needed to - because it wasn't a penalty, I didn't touch him, I have collided with Pepe (Reina)," said the England international.
"Reputations go in front of people at times and because Valencia is not a known diver that is why he got the decision.
"I almost guarantee if it was exactly the same situation and it was Luis and not Valencia then it wouldn't be a penalty.
"It is cheating at the end of the day, that's what people call it.
"You can't describe [the feeling] but you don't expect people to do that - they are better than that.
"This is one the best leagues in the world and you've got someone doing that.
"I know it is difficult for the referee when we are sprinting as fast as we can but in the big games they are the differences and we expect the referees to make the right decisions.
"We are working as hard as we can to win the game and to have that taken away like that .... I can't explain it.
"The referee said to me he had to give it so he obviously thought I had touched him. It is frustrating because I've not touched him."