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

SunSport understands the 22-year-old is heading south to discuss terms and have a medical ahead of tomorrow's English transfer window shutting at 5pm.

1 The Hoops idol was handed Parkhead debut by Ronny Deila Credit: Getty Images - Getty

He was spotted with his agent Allan Preston at Edinburgh Airport for a flight to London.

Scotland left-back Tierney - with the Hoops since he was seven - will likely sign a five-year deal on £75,000 a week.

Celtic, meanwhile, 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.

Speaking after his side's draw with Cluj, Celtic boss Neil Lennon hailed Tierney.

The defender has made more than 150 appearances for Celts, winning eight major honours.

He has also captained Scotland and been voted Young Player of the Year three years in a row.

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