Arsenal will lodge a £22million bid for Kieran Tierney in the next 48 hours, according to reports.
Celtic turned down Arsenals opening bid of £15m and value the full-back at £25m.
Unai Emery has identified Tierney as the perfect option to take over from Nacho Monreal at left-back, however, the emergence of Napolis interest in the Scotsman has prompted a response from Arsenal.
Arsenal were preparing a £19m offer, but the Daily Record now claim the Gunners believe £22m is the figure Celtic will accept.
Napolis interest has forced Arsenal to accelerate talks, but the Londoners will be boosted by Celtics latest signing.
Boli Bolingoli-Mbombo has arrived from Rapid Vienna as Tierneys potential replacement and Arsenal have convinced Monreal to cancel his contract with the club.
Tierney is thought to be keen on joining Arsenal and could be Celtics record transfer sale if he leaves for more than £19.7m.
Moussa Dembeles exit last summer to Lyon stands as Celtics biggest sale in their club history.
While Unai Emery is thouRead More – Source