When Liverpool spent £37 million on Mohamed Salah last summer, no-one could have predicted he would surpass the 40 goal mark in his debut season.

But with four league matches and potentially three Champions League ties remaining, the Egyptian has already brought up the 40-goal tally.

Even those fans that saw his exploits for Roma in the previous two seasons will be amazed by Salah’s season.

Liverpool signed Salah on the back of his two brilliant campaigns for Roma. However, the winger only managed 15 goals during the season he was on loan before managing 19 after signing permanently.

So, how can you go from failing to score 20 goals in an arguably weaker league for Roma to scoring more than 40 for Liverpool?

Well, while Salah deserves an enormous amount of credit, Jurgen Klopp is also due some praise.

Klopp has transformed Salah from a winger to an inside forward, with the 25-year-old taking up more central positions.

KLOPP TOLD SALAH TO PLAY 'INSIDE' 

This has allowed him to play on the shoulder of the last defender, becoming harder to mark and, ultimately, being in more goalscoring positions.

And an in-depth article from Goal titled: 'How Klopp and Liverpool turned Salah into Europe's deadliest goalscorer' has explained how Klopp had to teach Salah to stop playing as an out-and-out winger in pre-season.

"Tactically, too, Klopp found a player willing to listen. He spoke with the player a lot during pre-season, and liked what he heard. He used trips to Hong Kong and Germany to get across his idea of how Liverpool would play with Salah in the side," it reads.

"Repetitive training drills focused on getting him to play ‘inside’ rather than ‘outside’. The idea was that Liverpool’s full-backs would provide the width in the team, with Salah, Mane and Firmino free to wreak havoc infield - "organised mayhem," is how one observer puts it.

"Salah was told to work on moving inside his full-back to receive the ball, either to feet or in behind. He was instructed to play close to Firmino, and encouraged to learn from the Brazilian’s superb counter-pressing and defensive positioning. Salah, to his credit, bought into the idea. Liverpool's aim is not simply to cut off angles and to close down, they have to believe they can win the ball too. Firmino, Salah and Mane are the best around at doing so."

However, on Salah’s full debut at Watford, he didn’t quite listen to Klopp’s instructions.

WHAT KLOPP TOLD SALAH AT HALF-TIME ON HIS DEBUT

Liverpool found themselves 2-1 down at Vicarage Road on the opening day of the season and Salah got a bit of a talking to by Klopp at half-time.

The report continues: “Liverpool’s first league game of the season was at Watford, and Klopp spent the first half of it annoyed. Salah, he saw, was playing too high and too wide. He was making himself too easy to mark.”

Klopp told Salah he needed to play far more central - and it worked a treat.

Salah won a penalty in the second-half before making it 3-2 to Liverpool with a poacher’s goal from a matter of yards.

Miguel Britos scored an injury-time equaliser to make it 3-3 but this was the day Salah learned to play Klopp’s way.

And he hasn’t looked back since.

He's clearly taken Klopp's advice on board and can now be seen playing more as a striker than a winger and it's the sole reason he's been able to score a hatful of goals this season.