We have failed and I must take the blame, says Wenger

The club are fourth in the League going into Sunday's final game at Portsmouth and were out of all cup competitions by the first week of March.

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Wenger admits this season has been his worst since joining the club.

"We are 22 points behind the leader, so I cannot say I did everything perfectly," he said.

"I am responsible for the fact we didn't fight for the championship. I have to stand up for what I call a failure."

But Wenger believes his side will be challenging on all fronts next year.

"We have shown qualities that nobody else has," he said. "We have mental strength and technical quality."

The rebuilding has begun with the £2million capture of Poland keeper Lukasz Fabianski, 22, from Legia Warsaw.

He is seen as the long-term replacement for Jens Lehmann, who has signed a contract to stay for one more year.