Robin van Persie was twice denied by the woodwork as Arsenal were held to a goalless draw by Bolton at the Reebok Stadium.
The Holland international, who also had a header cleared off the line early on, hit both the post and the crossbar in the second half as the Gunners slipped up on their travels again.
Wanderers clung on determinedly, after David Ngog had missed two chances in the first half, to add another point in their bid to avoid relegation.
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