Celtic team news
Here's how Celtic line-up in Bergamo tonight.
Adam Idah is preferred up front ahead of Kyogo, who drops to the bench.
Celtic XI: Schmeichel, Johnston, Trusty, Scales, Valle, McGregor, Engels, Hatate, Kuhn, Maeda, Idah.
Liverpool boss Arne Slot will be without Diogo Jota tonight as the Reds take on RB Leipzig in Germany.
The Portuguese star limped off in Sunday's win over Chelsea and has not travelled with the squad.
Slot said: "He got a knock [on Sunday], like we all saw, when he was trying to go to goal, brought down.
"That was not the biggest problem but I think the other player fell onto him and that hurt him that much that he couldn’t continue to play and he couldn’t come with us for now.
"It’s difficult to judge at this moment of time to see how long that’s going to take. It’s bruised, so we have to see how long it is going to take."
You're here nice and early - which is a good job, because we've got two belters coming up in the 5.45pm window.
Atalanta welcome Celtic to the Gewiss Stadium fresh from two clean sheets in their opening two CL matches.
For Celtic, surely things can't go any worse than last month's 7-1 thumping by Dortmund.
And over in France, it's a mouth-watering clash between two unbeaten sides.
Brest, the surprise package of this year's competition so far, welcome Bundesliga Invincibles Bayer Leverkusen.
The full fixture list then from a packed Wednesday night across Europe.
Nine matches in all, with the majority getting going at 8pm.
This new-look Champions League format isn't for everyone, but you can't argue that goals haven't been flying in right, left, and centre.
Hope you've all brought an abacus tonight because there's more on the way.
There were 27 for us to enjoy during Tuesday's games, including Real Madrid storming back against Dortmund and dark horses Monaco putting in another five-star performance.
Tonight it's the turn of Liverpool, Celtic, and Man City, with Barcelona vs Bayern also on the menu. Tasty.
Arne Slot's Reds are in Germany, going up against an RB Leipzig team who score plenty but are leaky at the back.
City meanwhile welcome Sparta Prague, with Pep Guardiola hinting pre-match he's expecting a strong performance.
But first up Celtic are in action in Bergamo, as they take on Serie A's Atalanta.
Brendan Rodgers' men return to European action for the first time since shipping 7 against Dortmund last time out.
We'll have team news and build-up from around the grounds, before every goal as it happens. Strap in.