Napoli are threatening to gazump Arsenal in the race for Kieran Tierney but will have to act quickly to land their man.
The Celtic left back has been the subject of a £15million bid from the Gunners, who are expected to return with an offer of around £19m.
Napoli manager Carlo Ancelotti is an admirer of Tierney’s energy and is keen on signing the 22-year-old.
Napoli are threatening to gazump Arsenal in the race for Celtic left back Kieran Tierney
The Serie A side, who will be in next season’s Champions League, have travelled to Glasgow on a number of occasions to cast their eye over Tierney.
Sportsmail understands a deal totalling £25m – a portion of that in additional clauses – should be enough to persuade Celtic into allowing the Scotland international to leave.
Tierney has left Celtic’s pre-season camp in Austria to step up rehabilitation from a double hernia operation at the club’s Lennoxtown training base.
Sportsmail understands a deal totalling £25m should be enough to capture the defender