"All the fans and all the players, everybody around this club, has been waiting for the Champions League to start back since May", Robertson told BT Sport.
"Consistency is key. That's how Man City won last season. We didn't learn a lot that we didn't already know before but it's nice to know we can do it again".
"We are obviously in close contact with him and it improved already - but in this moment I can't say if he will be available for tomorrow".
Not for the first time this season, the Reds triumphed through hard work, a superbly drilled defence and opportunistic finishing rather than replicating the kind of swaggering play that took them to the Champions League final last season.
"If it's late in the season that you see you have a chance to do that or do this and all that stuff".
The England global said he had no problem with the selection choices made by Klopp.
"Watford is Watford, we didn't show our normal behaviour, attitudes or motivation but [against Liverpool] we competed, I have nothing to say", he added.
Roberto Firmino is a slight doubt for the Reds after taking more than a poke in his eye this past weekend.
"Everyone knows him since he was 16, 17, when he impressed in Monaco's youth teams, and I saw videos of him when he was 17 and he destroyed defensive lines as he is doing now".
Liverpool manager Jurgen Klopp defended Neymar's play-acting at the World Cup and believes it will be impossible to completely snuff out the Brazilian's threat when Paris Saint-Germain visit Anfield in the Champions League on Tuesday.
"I'm not sure if we can do it on Tuesday and then next Saturday [against Southampton] again".
"It was a free kick for Tottenham, right?"
"I don't know exactly what it means but to focus on one competition can only be if maybe you are already out of the competition almost".
Firmino was discharged from a London hospital on Saturday afternoon after suffering an abrasion of the eye during the match.
"Firmino travelled back to Merseyside separately from his teammates with club doctor Andy Massey following the positive assessment".