West Ham manager Slaven Bilic felt Chelsea's late penalty was outside the box and should not have been awarded in the 2-2 draw at Stamford Briidge.
The controversial spot-kick was converted by Cesc Fabregas, as the Blues continued their unbeaten league record under Guus Hiddink.The Hammers were heading for a place in the top four until that incident a minute from time when Michail Antonio brought down Ruben Loftus-Cheek, with replays showing the contact looked to be outside the area.
And Bilic feels the challenge did not merit a penalty, and the referee has cost his side another vital three points.
"To concede a goal very late it is gutting anyway no matter how you concede it, but to concede it like that from a penalty, which was basically outside the box, it makes it unacceptable," Bilic told Sky Sports.
"It was outside, way outside. It is clear Antonio didn't want to trip him, he touched him but it wasn't even close to the line.
"It was one metre. So we can say it was hard and at full speed, and the player went down in the box, but we are not getting those penalities, we are not getting them."
Aside from the late penalty, Bilic was very pleased with his side's performance and the way his team played.
"We like the way we're playing, to attack with numbers and we have that kind of quality. They're doing basics, dirty work and when we have the ball we're really good."
"Of course I'm proud of them but we deserved more, and it wasn't down to us and it wasn't down to Chelsea, no matter how great that move from Willian it wasn't a penalty."