Martin Keown claims Kieran Tierney is exactly the type of player Arsenal need after the left-back inspired a dramatic 3-2 Arsenal comeback over Benfica on Thursday.
The Scottish international started the fightback when the Gunners were 2-1 down on the night and 3-2 down on aggregate but Tierney fired home from the edge of the area to give the north Londoners hope of progressing to the last-16 stage.
Tierney then ushered his Arsenal team-mates back to find a winner - which they did through Pierre-Emerick Aubameyang's header just minutes from time.
Former Arsenal defender Keown claims Tierney's attitude after scoring his goal is the temperament Mikel Arteta's side needs as they try to salvage something from this season.