Firmino
The former Liverpool forward scored twice in the opening 10 minutes before another strike in the 72nd for his treble sealed the three points for the newly-promoted team.
The 31-year-old is out of contract at the end of the campaign and Liverpool boss Juergen Klopp confirmed he was one of four players who would leave in the close season along with James Milner, Naby Keita and Alex Oxlade-Chamberlain.
Inter had the better of the first-half chances, but Juergen Klopp's side were resilient if not at their very best.
Klopp has threatened to withdraw players from international matches if there is a chance they will have to quarantine on their return under coronavirus rules.
The three players have scored 225 goals collectively since Salah's arrival to the Reds in 2017 summer.
Brazil had never lost a World Cup qualifier at home, a run that stood at 54 matches going into Friday’s game, and they never looked in danger of losing that record.
The three players have been linked with a move away from Anfield as many European superpowers showed interest in signing the Reds' stars.
Liverpool beat Southampton 4-0 at Anfield stadium, in the 25th round of the Premier League matches.
Liverpool striker Roberto Firmino has not found enough words to describe his sense of crowning the Club World Cup
The prolific front three players formed a successful partnership that made the Reds one of the best teams in Europe.
Klopp has said Brazilian striker Roberto Firmino should be fit to face Tottenham Hotspur in Saturday’s Champions League final in Madrid.
Liverpool players are searching for a miracle to reach the final after losing the first leg in Spain 3-0.
Jurgen Klopp revealed Roberto Firmino has suffered a torn groin muscle after Liverpool powered back to the top of the Premier League with a 5-0 rout of Huddersfield on Friday.
Goals from Naby Keita and Roberto Firmino earned Liverpool a 2-0 win over Porto on Tuesday.
Two goals each for Roberto Firmino and Sadio Mane helped Liverpool to keep in touch with Premier League leaders Manchester City with a 4-2 win over lowly Burnley at Anfield on Sunday.
Firmino suffered an injury during the team’s goalless draw against Manchester United on Sunday and had to leave the pitch after 31 minutes.
Salah has formed a great partnership with his teammates, Mane and Firmino, since he joined the club in summer 2017 from AS Roma.
The players are also having a great relationship which appeared on Saturday and almost made the club manager, Jurgen Klopp, cry.
Liverpool were 1-0 down after only 9 minutes but they returned in the game and defeated Arsenal 5-1 on Saturday night.
Salah admitted it would be "a dream" to cap a sensational debut season at Anfield by ending Real Madrid's European reign in Saturday's Champions League final