Kieran Tierney will prove to be a bargain £25million addition for Arsenal according to the former Gunners forward John Hartson, who says that the left-back is a better defender than his fellow Scot Andy Robertson.
The 22-year-old has featured twice for the Gunners in recent weeks, making his first appearances for the club following his recovery from a hip injury.
Tierney asked not to be selected for the Scotland squad for the upcoming Euro 2020 qualifiers against Russia and San Marino as he bids to find full fitness for the Gunners, but Hartson says he'll make a big impact once he's up to speed.
“People talk about Andy Robertson. I would say at this moment in time he has better delivery but Kieran is a better defensive player,” the former Celtic and Wales forward told the Daily Record.
“Kieran gets low and defends well and he can also play as wing-back if needed. I watched Robertson when he was playing for Dundee United when I was covering the game and he was good.
“He went down to Hull and his career fizzled out there but Liverpool took him for £10milion and now he is on fire.”
Hartson went on to say that Tierney was an excellent piece of business for the Gunners considering the prices of other players who moved this summer.
"Arsenal probably got him on the cheap if you look at the fact Manchester United paid £50million for Aaron Wan-Bissaka," he continued.
“Also, average players are going for £30million or £40million and Kieran is certainly not average.
“Celtic could have held out for another £5million or so but it is still good money they have banked, especially due to the fact he has come through the ranks and hasn’t cost the club a penny.
“He is worth £25million and he can excel in a different league because there’s a perception the Scottish league is just not as good.”