The Bosnian likes to stay behind the scenes.
With that in mind Arsenal were hard at work in training today.
Most of the pictures from their session at London Colney revolved around the players larking around in the session and working hard ahead of their tie.
However their is no doubt what the pick of the snapshots was.
The Bosnian is reluctant to get on camera and a shot is rare, but Chambers got him in the action today.
However, you can clearly see that the 61-year-old was not happy with the defender for getting him on camera.
Primorac has been with Arsenal since 1997, heading over with Arsene Wenger from Nagoya Grampus 8.
His calming influence as first-team coach is revered at Arsenal, even if he does not often find the limelight.
As for Chambers, hopefully sprints were in order for the England under-21 star.