Mohamed Salah, fresh from winning the PFA Player of the Year award on Sunday, arrived at the ground with the likes of Roberto Firmino and manager Jurgen Klopp joining him soon after.
The squad parked their cars outside of the stadium before heading off to their hotel to relax in the hours before the big game.
Liverpool are slight favourites going into the tie as they seek to add a sixth European title to their illustrious list of honours, but they will be taking nothing for granted against a Roma side who knocked out favourites Barcelona in the last round.
The players will expect another partisan atmosphere inside Anfield, which came out in force during their quarter-final first leg against Manchester City and inspired them to a 3-0 win that set them on a path to the final four.
Klopp has, however, asked the fans to refrain from a repeat of the shameful scenes outside the stadium on an otherwise positive evening, when the Manchester City bus was pelted with rocks and bottles to leave several windows broken.
He hopes Anfield will be even noisier than it was for the match against the Premier League champions, but does not want supporters to overstep the mark again.
‘In the stadium, do it again — and better,’ said Klopp. ‘Out of the stadium, please show the respect we have to show. This is such a fantastic football club, outstanding football family, known for fantastic atmospheres all over the world, so we don’t need to throw whatever at the bus.
‘Please show the respect they deserve. We are opponents on the pitch but I really think we can show how wonderful Liverpool people are and the city and the spirit of the club. We can show it 20 minutes before the game and then the whole world knows it. All the people here deserve that we show this.’
The game will also see Salah, who has 41 goals to his name this season, come up against his former club for the first time since leaving last summer. The Egyptian made his name with Roma before joining Liverpool for £39million and has since proved excellent value for money.
Even so, Roma president James Pallotta has claimed that compatriot and Liverpool owner John W Henry was left ‘bitching’ at the price his club had to pay to get their man.
Speaking to ESPN, Pallotta said: ‘He was sort of bitching a little about, “Did we overpay? I think we overpaid.” And I said, “I’ll buy you lunch”.’