Tottenham goalkeeper Heurelho Gomes has slammed their performance in defeat at Wolves.
It is results like those which are damaging the chances of a first Champions League campaign for the club, according to Gomes.
"We lose a little bit of concentration for games like this," said the Brazilian goalkeeper.
"The best sides win these games and that makes the difference in the table."
Gomes added in the London Evening Standard: "It was our most disappointing result of the season.
"Away from home, we normally play very well but not in this game. We were poor.
"We had just one chance to score in the first half and in the second half we created nothing.
"It was a difficult day but we have to forget about it and concentrate on Sunday's match against Bolton in the FA Cup."