With a newly cast defence a clean sheet this afternoon would be incredibly welcome.
Neil Lennon managed it against Elfsborg and Ronny Deila away to Qarabag but on both occasions the defence was fairly settled.
Craig Gordon has put in some great European performances and needs to apply real leadership letting every defender know where he is and what he expects of them.
The early stages will require real discipline as Celtic set out their stall, giving away a cheap or early goal would be disastrous. Since Erik Sviachenko got injured in training on Friday Rodgers will have been thinking over his team selection, getting the defence right is essential.