Top class left-backs have always been tough to find. That’s why the departure of Ashley Cole to Chelsea was such a bitter blow for Arsenal back in 2006, and why the club splashed the cash to land Kieran Tierney last summer.
The arrival of Tierney in a £25million move from Celtic was intended to provide an immediate solution to a problem position for the Gunners.
Instead, it took the Scot time to adjust as he endured an injury-ravaged first season at the club. Even amid his injury struggles, there were flashes of his potential that caught the eye of Cole - a man who knows a thing or two about being a top left-back.
Read more on mirror.co.uk