Joe Hart was lost for words after West Ham United threw away victory against Crystal Palace on Saturday.

The United stopper did more than most to preserved all three points for United at Selhurst Park , making a number of fine saves before Wilfried Zaha struck deep into second half stoppage time.

Hart left no doubt about his disappointment after the late lapse and felt conceding in such a manner was unacceptable.

"I can't believe we have done that," Hart said. "I can't believe we've fought all the way to the end and then been so unprofessional at the end.

"It is a little speechless in the dressing room. No one does things on purpose in this team but it's two points dropped, as simple as that.

"I hadn't switched off but it was a good finish by Zaha, through the legs, and I'm bitterly disappointed."

The manner in which Palace refused to lie down desreved credit, and the seven saves Hart made was evidence enough of their fighting effort.

The hosts hit the post and had an effort cleared off the line before scoring their equaliser and were good value for a point at least.

Hart accepted the Irons showed naivety in their approach and says they must learn from the mistakes which cost them, starting against Liverpool on Saturday.

"You've got to keep the ball in the corner, it's that simple, and you can't let people keep running through you and getting chances," he said.

"Today counts for a point that is about it. We learn simple things.

"Place fought well and we're disappointed, but we have got to learn from it.

"The Beautiful thing about football is it gives us another chance next week to play at home, against Liverpool, and we have to iron out the negatives and take the positives, and move on."

A failure to do so against the Reds could see United drop into the relegation zone dependant on results elsewhere.