VIDEO: Kieran Tierney makes his debut – Arsenal 5-0 Nottingham Forest

Kieran Tierney left boyhood club Celtic this summer to secure a big-money move south of the border – and he made sure to pay tribute to his former team as he got off to a winning start on his Arsenal debut against Nottingham Forest.

The 22-year-old left-back had been struggling with a groin injury since signing of the dotted line in north London but finally returned to action for Arsenal’s Under-23 side on Friday night.

Kieran Tierney made his Arsenal debut in our Carabao Cup victory over Nottingham Forest at Emirates Stadium earlier this week.

Tierney became a fan favourite during his long stay with Celtic and it was easy to see why as the Scot produced a near-perfect display on the left flank at the Emirates.

He managed 77 minutes before being replaced by Bellerin as the Gunners steamrolled Forest with a 5-0 win to reach the Carabao Cup last-16. Eagle-eyed fans may have noticed that the young full-back had ‘Bhoys’ – Celtic’s nickname – embroidered on the back of his boots.