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Fabianski out of firing line with Almunia return

Under-fire Arsenal keeper Lukasz Fabianski could find himself taken out of the firing line if regular No1 Manuel Almunia is passed fit for tomorrow's Premier League clash against Sunderland.

The Poland international had an evening to forget at Estadio do Dragao on Wednesday night, as his costly errors saw the Gunners suffer a controversial 2-1 defeat against Porto that leaves their hopes of making it to the quarter-finals of the Champions League hanging in the balance.

Manager Arsene Wenger had spoken of his complete confidence in the "massive potential" of the young Pole in the build-up to the first leg of the last-16 tie, and refused to single out the 24-year-old for blame after the latest in a series of unimpressive displays.

Should Almunia recover from a twisted finger, Fabianski could again find himself warming the bench.

Alex Song is expected to be back after missing the Porto trip but Wenger revealed fellow midfielder Abou Diaby has picked up a knee problem.

William Gallas (calf), Andrey Arshavin and Eduardo (both hamstring) are still out.

"We lost Abou Diaby," Wenger said. "It is not understandable. I don't know how it happened but he has a medial knee ligament injury.

"However, Song could be available, we have a test on him on Friday.

"I don't know about Almunia, we'll have a test on him too. I'd say Song is 80pc to be back in the squad. Almunia is 50-50 but Diaby is zero.

"Arshavin, Gallas and Eduardo will still be out."

Despite his blunders against Porto -- first pushing Silvestre Varela's cross into his own net before then giving away a free-kick when he picked up a back-pass from Sol Campbell that led to Porto's second goal -- the young Pole continues to have the full support of his team-mates.

Captain Cesc Fabregas said: "Lukasz is a very good keeper. He had his chance and sometimes it doesn't go your way.

"But we will stand up and support him until the end because he is a good character and I am sure he will be back."

Fabregas added: "Lukasz is strong and we have to be there for him. Sometimes when you are young in a big game these things happen to you."