Italian Champions Juventus have rejected Europa League finalist, Arsenal‘s offer to take defender Daniele Rugani on loan.
The Gunners are looking to shore up a backline that shipped in over 50 Premier League goals last season.
Celtic defender Keiran Tierney remains Arsenal top choice at left-back but the Gunners are still looking to sign a Central Defender despite capturing William Saliba.
Laurent Koscielny has made his desire to exit North London known and Mustafi is attracting enquiries from Monaco.
According to Goal, an approach was made for Rugani, who has struggled to cement a regular starting spot at Juventus, since returning from a loan spell with Empoli in 2015.
Arsenal wanted to take Rugani on a two-year loan, with an option to buy at the end of his spell in north London.
But Juventus turned down the approach, with the Serie A champions reluctant to let the 25-year-old leave.
Although they go into the season with five central defenders, the Italian outfit is concerned about the fitness of Giorgio Chiellini.
Rugani meanwhile, is happy to remain in Turin, with the defender keen to work under new boss Maurizio Sarri.