The Reds signed the Egypt international in a £39m deal from Serie A giants AS Roma in the 2017 summer transfer window to bolster Jurgen Klopp’s attacking options.
Salah has scored 28 times in 30 games in the Premier League this term to sit at the top of the goal-scoring charts ahead of Tottenham Hotspur striker Harry Kane.
The African forward has also netted eight times in the cup competitions to help the Merseyside outfit reach the Champions League quarter-finals.
Salah has taken the Premier League by storm with his ability to cut in from the wing and find the back of the net from central positions.
However, former Liverpool FC legend striker Rush warned Salah that he will need to further develop his game ahead of his second season at the Anfield outfit.
“You keep looking to improve yourself every time,” Rush told ESPN.
“You know next season people will be looking out for you. People will be out there saying: ‘If you stop Salah from playing, then you stop Liverpool from playing and winning.’
“You’re always looking to improve each season because the opposition will be doing exactly the same. If you can’t add one or two things to your makeup, then you’re not going to do that.”
Liverpool FC finished in fourth place in the Premier League table last term after the Reds managed to fend off competition from Arsenal.
The Merseyside outfit signed Virgil van Dijk in a club record £75m deal from Southampton in the January transfer window.
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