The left-back has been one of Celtic’s most important players in recent seasons, playing a key role as they won the ‘treble treble’.
Tierney’s impressive performances have led to interest from Arsenal, who are eyeing a long-term replacement for Nacho Monreal.
According to Football Insider, the Gunners are set to make an offer Celtic ‘can’t refuse’ after seeing an initial £15m bid knocked back.
The Glasgow giants are desperate to hang on to Tierney but seem resigned to seeing him follow fellow left-back Emilio Izaguirre out the door.
And Neil Lennon wants Milad Mohammadi to come in to fill the void.
The Iran international made headlines at last summer’s World Cup as he attempted a roly poly throw in against Spain.
And Mohammadi, who plays for Akhmat Grozy in Russia, could be on his way to Scotland.
The transfer revelation comes amid news that:
“We don’t want to lose him.”
Celtic boss Neil Lennon
Mohammadi is out of contract at the end of the month and is available on a free.
The 25-year-old is a long-term target of Celtic and Football Insider claim he’s keen on a move.
Mohammadi is also able to play further forward and is wanted by Championship duo Fulham and Bristol City.
Despite Celtic’s desire to hang onto Tierney, Lennon admits he’s expecting a lot of interest this summer.
He said: “I would expect bids. We’re realistic and I’d be surprised if there weren’t any offers for them because they’re both extremely talented players.
“For someone so young, Kieran already has vast experience – he’s played Champions League, Europa League, internationals and he’s won trophies.
“I don’t think he would fear going anywhere, but it would be a wrench for him because the club means so much to him.
“We’ll cross that bridge if and when we come to it but we don’t want to lose him.”