Arsenal head coach Mikel Arteta has admitted that "something is missing" with his side, who have gone five straight Premier League games without a goal from open play.
The Gunners have only scored once in those five matches - a Pierre-Emerick Aubameyang penalty against Manchester United on November 1 in a 1-0 win for the Gunners.
It has been a struggle offensively for the Gunners, who enter Sunday's match against Wolves in 14th place in the league table.
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Arteta believes that his side aren't too far off what he would have expected, but said the Gunners' failure to make up small margins is proving costly.