Celtic star Kieran Tierney is odds-on to sign for Arsenal before the transfer window down south slams shut tomorrow.

The Hoops left-back has been the subject of a summer saga with the Gunners having already had two official bids booted into touch.

Celtic remain adamant they won't be selling their star man for any less than £25million - but various bookies are less convinced with the Scottish Champions' resolve.

READ MORE: Neil Lennon reveals Arsenal target Kieran Tierney could play for Celtic in a fortnight

Betting giants SkyBet are offering odds as short as 1/20 while Paddy Power and Betfair are running with 1/9 to leave and join the Emirates before the deadline.

Napoli are also priced at 5/1 with William Hill and 11/2 with Paddy Power to take the defender to Italy - despite boss Carlo Ancelotti recently appearing to rule out a move for KT.

If Tierney does remain in Glasgow this summer, Celtic boss Neil Lennon reckons the Scot could be back in light action as early as next week.

The 22-year-old has been nursing a hip and pubic injury following an operation but Lennon recently revealed he's closer to a return than has previously been reported.

READ MORE: Arsenal boss Unai Emery admits summer spending could be OVER amid Tierney interest

He said: "He’ll be fit in a week or two.

"He still has some abductor pain, but I think the pubic issue is starting to settle and he’s over the double hernia as well.

"I know there is talk of him being out for another eight weeks, but that’s nonsense. 

"I don’t know where that’s come from because that’s certainly not the case at all."