Arsenal agree £25m transfer fee Kieran Tierney as Celtic defender flies to London for medical

KIERAN TIERNEY is on his way to Arsenal after they finally agreed a £25million deal with Celtic.

SunSport understands the 22-year-old is heading to The Emirates to sign a five-year contract and have a medical ahead of tomorrow's transfer window shutting at 5pm.

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The Gunners had been battling for the defender's signature all summer.

But the Bhoys had turned down Arsenal's £20m offer and were determined to get top dollar.

The Londoners finally upped their price and agreed a fee for the Scotland international.

He could now make his debut this weekend in the Premier League opener against Newcastle.

Celtic will also get a bumper sell-on clause with the astounding transfer package shattering the previous the Scottish record sale of nearly £20m for Moussa Dembele.

The Frenchman swapped the Hoops for Lyon a year ago.

Arsenal still hope to sign a centre-half before the window closes, with Chelsea's David Luiz the favourite.

The Londoners have also increased their personal terms for Juventus defender Daniele Rugani, whoc could now make a loan switch.

The Gunners completed their biggest transfer when they signed Lille winger Nicolas Pepe for £72m this summer.

But Emery was desperate to strengthen the left side of his defence - and finally got hid man.

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