The Egyptian extended his lead at the top of the Premier League goalscoring charts, taking his tally to 13 goals.
The 30-year-old could be out for much longer, casting doubt over his availability for the Euros which are scheduled to begin in June.
Liverpool have the quality in their squad to deal with the absence through injury of influential centre back Virgil van Dijk, said skipper Jordan Henderson.
Dominic Calvert-Lewin hailed his team’s battling qualities in Saturday’s 2-2 draw with Premier League champions Liverpool.
Liverpool ended their 30-year wait for a top-flight title last season, finishing 18 points clear of Pep Guardiola’s Manchester City.
Salah became the first Egyptian to win the Premier League title after only one year from clinching the UEFA Champions League title.
The 30-year-old Henderson has been central to Liverpool’s success under Juergen Klopp.
Henderson received the long-awaited trophy from the club legend Kenny Dalglish, who was the team's manager when the Reds last won the title in 1990.
After three months of suspension amid coronavirus outbreak, English clubs were permitted to return to training in small groups on Tuesday.
Henderson’s comments came after the Egyptian winger was booed from Brighton fans who accused Salah of diving to win penalties.
Henderson impressed his manager with his fitness levels and played 20 minutes in Tuesday's 3-1 pre-season win over Torino.
Salah scored four goals and provided an assist to lead Liverpool to defeat Watford 5-0.
The trio has scored 65 goals of the club’s 103 goals in all competitions this season.
Klopp substituted Emre Can and Sadio Mane for James Milner and Jordan Henderson 25 minutes before the final whistle.
Jurgen Klopp, the current Liverpool manager, feels optimistic of the new season, Liverpool signings raised the fans’ hope to win titles next season