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.