Liverpool finished fourth in the Premier League last season to earn an opportunity to return to UEFA's elite club competition, having made a swift exit in the group stage during their most recent appearance in 2014-15.
Jurgen Klopp, Liverpool manager had revealed in the past stated that Coutinho is part of his plan and would not be leaving this summer.
"I will answer questions but I'm not in the vehicle, on the way to this press conference, thinking 'if they ask this question, what can I say?' because I have to think about the (training) session in a few minutes".
"We have a session in a few minutes, I work with the players I have", Klopp continued.
"He's not available for us at the moment so that's the main issue".
Wozniacki beats Stephens to reach Rogers Cup final
Caroline Wozniacki during her quarter-final match against Karolina Pliskova at the WTAâÂÂtournament in Toronto on Friday. Even with her semifinal match being quick and painless, it's not easy to bounce back after playing four sets in one day.
I will sidestep that though and it may go against the grain somewhat, but I actually think the Watford game will act as a huge wake-up call for Liverpool. I know the market has changed, it's become very hectic, but we won't take that as an excuse. "I've said everything I can say about it". I don't think about the players I don't have. "All the rest is just between me and all the boys, not just Phil".
When asked again about Coutinho, Klopp sought to draw a line under the matter.
"He's my team-mate and I'm close to him, I've got a lot of respect for him, but at the end of the day everything that happens has got nothing to do with me".
As such, the 25-year-old's involvement, or not, should have no hidden meaning in relation to Barcelona's interest in the player.
"It's a great opportunity for us as a team", Henderson said. As Napoli finished third in Serie A last season, he bagged 20 goals from midfield - an impressive achievement in any top European league.