CELTIC could be in line for a major windfall this summer if Kieran Tierney is on the move.
It has been reported this morning that Manchester City are plotting a "late swoop" for the Scotland star.
The Daily Mirror claim that the left-back could leave Arsenal for City in the coming month.
It comes after Ukraine international Oleksandr Zinchenko moved in the oppositie direction to the Emirates earlier in the window.
After missing out on Brighton's Marc Cucurella, the English champions are in need of another option at left-back.
And Celtic would be in line for a huge cash boost if a transfer was to take place.
The Hoops are due a 15-per-cent sell-on fee from any sale.
They inserted the clause in the deal with Arsenal which saw KT move to London for £25million.
It is expected that any deal for Tierney in this window would be worth well over the £50million mark.
He's made 88 apperances for the Gunners, scoring four goals in his time.
