Arsenal's manager Arsene Wenger

Gervinho is back in the squad, however Laurent Koscielny and Per Mertesacker are now on the treatment table

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Arsenal manager Arsene Wenger has provided an injury update ahead of their trip to Sunderland in the FA Cup fifth round.

There is good news in that Gervinho is back in the squad, however Laurent Koscielny and Per Mertesacker are now on the treatment table.

"Gervinho is back in the squad," Wenger said. "From the other night, we have lost Koscielny. Everyone else is available for selection.

"Kieran Gibbs played his first game in four months in Milan. So of course it was a shock to go back to that level. But physically, he is alright.

"Carl Jenkinson is back in full training on Monday. That is good news for us.

"Laurent Koscielny had a scan yesterday and the news is quite good. He will be out for hopefully around a week. He will miss the Sunderland game. But he should be back for next week.

"Unfortunately Per Mertesacker has had surgery and we have lost him for a while. How long I dont know. He had reconstruction of his ligaments. So it will be long term."