Arsenal boss Arsene Wenger has revealed that he has regrets over Ashley Cole's departure from the club, reports Goal.com.
Cole left the north London outfit in favour of a switch to Chelsea in 2006, and now Wenger has insisted that the player should have stayed with the Gunners.
The full-back, of course, went onto achieve great things at Stamford Bridge, winning Premier League and European trophies, whilst Arsenal struggled to reach their previous great heights.
But Wenger regrets the 'misunderstanding' that saw Cole depart the club. The Gunners chief said: "A regret of my career [was seeing Cole leave]. He left on a misunderstanding between his agent and the club.
"[Cole is] a fantastic fighter as well. The rest of his career has shown how big a player he is. It should have been here [with Arsenal]."
Arsenal and Chelsea rivalry
Arsenal and Chelsea, of course, have a great rivalry in the Premier League, with both clubs having enjoyed great success in England's elite division.
The two sides came up against each other before the international break, as Mourinho's side beat the Gunners by two goals to nil at Stamford Bridge.
And the two London teams will be hoping to prove their credentials in this season's title race today, with the Gunners set to play host to Hull City at the Emirates, whilst Chelsea travel to Selhurst Park to take on Crystal Palace.