Neil Lennon insists Celtic will not be caught cold if Arsenal make a late move for Kieran Tierney .
The £25million-rated left-back has been the subject of two failed bids from the Gunners but Lennon confirmed he has already drawn up contingency plans in case the 22-year-old is prised away from his boyhood club.
Reports say Emirates boss Unai Emery is ready to revive his interest in the Scotland international but the Spaniard has just 13 days to make his move before the Premier League transfer deadline on August 8.
Celtic have knocked back two Arsenal bids so far for £25million-rated Kieran Tierney.
But with Scottish clubs able to continue signing players up to September 2, Hoops boss Lennon is confident he has enough time to reinvest in his squad should Arsenal return to the table with an acceptable offer.
Lennon, speaking as he officially opened the Celtic Festival at Glasgow's SEC, said: "We obviously have contingency plans and have worked out other options if that worst-case scenario were to happen.
"So yes, having that extra two or three weeks later on in the window may be beneficial but as far as I'm aware there have been no (more bids)."
Lennon is desperate to keep hold of Tierney but admits he has no idea if he will get his wish.
"There's a lot of speculation obviously and that's going to rumble on," said the Northern Irishman. "I've been answering the same questions over and over in every press conference.
"It is as we were a week ago. Two bids have been in, two bids have been rejected and that's where we are.
"How confident am I he'll still be a Celtic player come the end of the window? Well, you can never say never.
"You can't predict these things. If there is interest in him then other clubs may come in or Arsenal may come again. I can't predict that.
"At the minute he's working away in the background and it's difficult for him to keep focused at the minute because he's only human but we're supporting him all we can."
Tierney remains sidelined after his double hernia operation but his absence did not hurt Celtic's Champions League hopes as they hammered latest qualifying opponents Nomme Kalju 5-0 on Wednesday.
