Liverpool boss Jurgen Klopp arrived in Moscow feeling "cool" that he finally will be able to unleash the 'Fab Four' of Coutinho playing behind Sadio Mane, Roberto Firmino and Mohamed Salah.
The Reds' second Champions League group game against Spartak Moscow on Tuesday evening will also provide Loris Karius with a chance to state his claim for the No 1 spot at Liverpool.
The goalkeeper, who has endured a difficult first 12 months at Anfield, has been given the responsibility of being Liverpool's European goalkeeper this season and he acknowledges that his performances are likely to be under intense scrutiny.
However, this is not something which worries the confident German keeper. He sees it as an opportunity to increase the pressure on Simon Mignolet it and prove that he can earn his place as the No 1 for the Merseyside club.
On Klopp's decision to rotate his goalkeepers in each competition his side plays in, Karius said: "I see it as a chance.
"We found out before the game (against Sevilla). It is not something he had planned in advance. You can't tell someone months in advance. I think it is normal. I know Simon played his part at the end of last season when the team did well. I understand him starting the league.
"But for me it is a case of performing well now. I'd lie if I said I don't want to be back in the Premier League team as well. That is why this is a big chance to prove myself. This is the chance to show the manager I'm ready."
Whilst Karius looks forward to proving his worth in Europe, Klopp spoke about his excitement at the return of Coutinho playing alongside Salah, Firmino and Mane.
"Now I'm excited, we have all of the boys here," said Klopp. "It is good to have them all, it is cool, but that doesn't mean anything.
"I don't believe in names. I believe in performances. They all have to fit together. It is not about being spectacular. It is about being good, and being clinical and having perfect timing. We cannot just bring all the artists. But if it fits together? We will do it."