The 25-year-old Egypt global has scored 32 goals over 40 appearances in all competitions since moving from Roma to the Anfield outfit for €42m in June, helping the Reds to fourth place in the Premier League with eight matches remaining.
Salah struggled to make an impression during an eight-month stint at Chelsea FC in 2014 before he move to Serie A.
The Brazilian forward has enjoyed a superb season in Ligue 1, scoring 28 goals in 30 appearances across all competitions before picking up a serious metatarsal injury.
Salah scored in his fifth successive Premier League game in a 2-0 victory over Newcastle United at Anfield last weekend.
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Former Liverpool FC defender Thompson admitted that he didn't envisage Salah being such a huge hit at the 18-time English champions.
The transfer value of Liverpool's Egyptian winger Mohamed Salah has been estimated at €162.8 million by a CIES Football Observatory study, topping the list of players in the five big European leagues.
Liverpool and Manchester United are keen on signing Red Bull Leipzig forward Timo Werner, but the German worldwide has said the Premier League sides should give up attempting to sign him over the summer.