However, Tomas Tuchel's Paris Saint Germain had other thoughts, as Belgian full-back Thomas Meunier and French youngster Kylian Mbappe led the charge and completed the turnaround within the final seven minutes of the game.
The match started with Liverpool looking like the stronger side, controlling the ball well and defending with organization and well-timed challenges.
"I sent him a message on Monday saying, "Hey Bobby, come on, we need you".
'When I watch them, I do not see a team who demonstrate a love for one another.
Three points from Anfield as Liverpool struck late on to defeat Paris Saint-Germain 3-2 in their Champions League Group C opener Tuesday.
"Liverpool could actually play this like a counter-attack game because PSG are so open, but I am guaranteeing goals here".
Sturridge was replacing Firmino in the starting line-up after the Brazilian suffered a ghastly (though thankfully not overly serious) eye injury during the previous game, Saturday's 2-1 win over Tottenham.
The triumph extended Liverpool's flawless start to the 2018-19 season, but Gomez warned against complacency.
World Cup victor Kylian Mbappe drew the visitors level with a composed finish late on but Firmino, who suffered an eye injury against Tottenham on Saturday, drilled in a 91st-minute victor. "Finally, we scored the third goal which was very important for the team".
'I felt well when I came on to the pitch, ' said Firmino. I was delighted to get an assist and it was a great header by Studge to set us on our way.
"We look now much more tuned than it maybe was in the past", he said. But we see ourselves at that level.
They got it with this performance, against a PSG side that has been built to win the Champions League and is expected to go far in the competition.
"The day before yesterday it was no chance, yesterday it didn't look really well and we had only one session, which we used, and that was this morning", Klopp told the Liverpool website.