Manuel Pellegrini has lamented West Ham's inability to defend set-pieces after losing to Wolves on Wednesday.

Leandro Dendoncker opened the scoring for Wolves when he poked home Joao Moutinho's corner.

Speaking after the game, Pellegrini said: "We wanted to go and win two games in a row. We didn't play a bad game, but they scored on a set-piece. We had an option to score through Robert Snodgrass but didn't do it.

"I said before that when we didn't win games it was down to conceding at set-pieces. We never thought before this game we were going to win just because we beat Chelsea.

"We must now try to win our home game against Arsenal."