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Arsenal have reportedly lost out on £10million Olympicaos centre-back Pape Abou Cisse - with Wolves set to land the giant defender instead.

The 23-year-old is rated as one of Europe's most highly-rated young stoppers and Nuno has won the race for his signature, according to reports in Greece.

It would mean Unai Emery will be forced to look elsewhere for a new centre-half as he bids to bolster his backline ahead of the new campaign.

William Saliba will sign for the Gunners but the 18-year-old will be loaned back to St Etienne.

Club captain Laurent Koscielny is desperate to leave Emirates and refused to travel on Arsenal's pre-season tour to the US in a bid to force a move back to France.

Rennes and Bordeaux are among the clubs keen to take Koscielny, but the Frenchman has a year left on his contract and Arsenal will not allow him to leave for free.

(Image: Srdjan Stevanovic)

But Emery insisted there is no way back for Koscielny, saying he will continue to train with the club's Under-23s when the Gunners land back in the UK.

Emery said: “I spoke about him with respect to him.

“I tried for him to be with us in the pre-season here and to continue working to find a solution between the club, between him and between us.

“When he decided not to stay with us here in the tour, the solution now is only for the club and him because he decided to be out of the team in pre-season.

“I respect him, but we have responsibility, he has his responsibility and the club has their responsibility and I have my responsibility. And now it is one issue only for the club and for him. My idea is continuing with the players we are working with and the players that want to be here.”