Liverpool sit top of Champions League Group C after Roberto Firmino’s stoppage-time winner secured all three points against Paris Saint Germain at Anfield.

In the other Group C clash of matchday one, Napoli struggled in Belgrade, creating more than three times as many chances as their hosts but leaving with just as many points.

Napoli’s European fragility last season saw the Italian side drop out of the Champions League at the group stage, taking just two wins from six to fall down a peg into Europe’s second-tier competition.

2018 appears to have the same future in sight for Carlo Ancelotti’s men, who sit six points off top spot in Serie A. Liverpool, meanwhile, are joint on points with reigning title-holders Manchester City - the team they face at the weekend in a vital Premier League clash.

With being top of the table at stake, Jurgen Klopp has a decision on his hands. Does he rest his big-hitters in Europe to focus on home results, or keep his expensive stars on the field?

The Egyptian forward lit up the Premier League last season following his £37million transfer from AS Roma that went on to look like a bargain.

But the form the left-footed winger displayed is yet to follow into the new campaign, with Salah scoring just three times in seven league games and failing to find the net in either of his Champions League and EFL Cup appearances.

A stark contrast in form for a player that scored 32 league goals, 10 in the Champions League and added another in his only FA Cup game for the Reds.

A night off in Naples could help focus the Egyptian’s mind ahead of his side’s vital league game at home to Manchester City on Sunday.

In his place, up step Xherdan Shaqiri. The Swiss winger joined Salah’s squad in the summer following Stoke’s relegation and is yet to establish himself in Klopp’s roster.

After joining from Southampton, van Dijk has established himself as a key cog in the Liverpool system, forming a formidable partnership with Joel Gomez in a backline that previously raised a lot of concern.

A night off against Napoli would do no harm for Liverpool, with fellow centre-back Joel Matip vying for further games after an impressive display against Southampton and featuring again in the League Cup match against Chelsea.

The Brazilian forward, like Mohamed Salah, has struggled in front of goal this season, netting just twice in seven league games.

But the striker came in clutch against Paris Saint Germain to come off the bench and score a stoppage-time winner.

Off the bench again is where Firmino will best suit the Napoli game with the resurgent form of Daniel Sturridge giving Klopp a key decision to make on who starts up top at Stadio San Paolo.

Like Firmino, Sturridge scored in the Champions League against PSG, kick-starting a run of form that included two goals in two games against Chelsea.

The stunning strike at Stamford Bridge surely puts his name in Klopp’s starting XI for the Champions League tie.