Manchester City manager Roberto Mancini has admitted that his side "need to work harder" following Sunday's 1-1 draw with Arsenal.
Despite going ahead through Joleon Lescott's header, Laurent Koscielny's late strike denied the Premier League champions the victory at the Etihad Stadium.
"This year we have one problem, we don't close the game and don't score more goals," Mancini told BBC Sport. "We had three or four chances in the second half and didn't score.
"I am frustrated about the result, because we had a chance to win and we conceded another goal. We need to work harder."
City's third draw of the campaign has left them four points off the top of the table in seventh place.
