Kieran Tierney has now played for both Celtic and Arsenal, like John Hartson.
John Hartson is one of a rare few players who have played for both Arsenal and Celtic.
Last night Kieran Tierney joined the list, making his Gunners debut in the Carabao Cup against Nottingham Forest.
Hartson sent a message on Twitter expressing his delight at seeing Tierney finally make his first Arsenal appearance.
Tierney arrived at Arsenal nursing an injury and this Carabao Cup game came at an opportune time after he returned to training last week.
Arsenal’s defence has been consistently poor this season and Tierney is seen as a key player for the Gunners in future seasons.
It will be a big call now for manager Unai Emery whether to start him against Manchester United on Monday night in the Premier League.
His positive debut is a good platform for him to build from.
Receive exclusive football transfer news and updates twice a week to your mailbox
