Spending on transfers has nearly tripled across the last 10 years, with fees rising on average at around 28 per cent a year - but who are the most valuable players in the Premier League right now?
Three of the five most expensive Premier League transfers were completed last summer, with Jack Grealish's move to Manchester City from Aston Villa for an estimated £100m breaking the competition's transfer record.
Romelu Lukaku's move back to Chelsea is the second biggest deal while Jadon Sancho's switch to Manchester United from Borussia Dortmund is the fifth-most expensive signing in Premier League history.
Liverpool, Man City and Arsenal only feature once in the top 10 when it comes to most expensive transfer fees, while the list is completed with three entries from Chelsea and four from Manchester United.
Liverpool's signing of Virgil van Dijk ranks 7th while Arsenal's deal for Nicolas Pepe is ninth. Man United's signins of Paul Pogba, Harry Maguire and Lukaku come in at third, fourth and sixth respectively.
Chelsea's signing of Kai Havertz and deal for Kepa Arrizabalga complete the list. The rise in fees has also seen player's values rise.
Below we have ranked the most expensive Premier League players based on their market value, according to transfermarkt.co.uk, take a look...
. Harry Kane - £90m
It is no surprise to see the England captain joint-top of the list. He has scored 183 goals in 279 club appearances as well as 50 international goals in 72 caps. Photo: Getty Images
. Mohammed Salah - £90m
The Liverpool winger is entering the final year of his contract at Anfield - it is almost unthinkable a player of his quality could be available for nothing next summer. Photo: Getty Images
. Kevin De Bruyne - £81m
The Belgian has been one of the Premier League's best players since joining Manchester City and is now worth more than the £55m paid for him. Photo: Getty Images
. Phil Foden - £81m
The England youngster is hailed as one of the most exciting prospects in world football, something highlighted by his considerable market value. Photo: Getty Images
. Bruno Fernandes - £81m
The midfielder joined Manchester United for £46.5m. His market value is the highest it has ever been. Photo: Getty Images
. Raheem Sterling - £76.50m
The England forward joined Man City for £49m from Liverpool in 2015. His market value was once estimated to be over £100m. He has been linked with a move away from the Etihad this summer. Photo: Getty Images
. Romelu Lukaku - £76.50m
Lukaku joined Chelsea last summer but could leave the club again this summer. Photo: Getty Images
. Jack Grealish - £72m
The winger is the most expensive Premier League transfer of all time but is valued joint eighth in terms of market value. Photo: Getty Images
. Sadio Mane - £72m
The Liverpool forward looks set to be on his way out of the club, with the Anfield outfit reportedly seeking around £40m for the player from Bayern Munich. Photo: Getty Images
. Trent Alexander-Arnold - £72m.
The right-back is the highest-valued defender in the Premier League. Photo: Getty Images
. Jadon Sancho - £72m
The 22-year-old's market value was once rated at over £100m but has dropped after a difficult first season at Manchester United. Photo: Getty Images
. Heung-min Son - £72m
The Tottenham forward enjoyed a fine season, sharing the Premier League golden boot with Mohammed Salah after the pair scored 23 league goals each. Photo: Getty Images
. Declan Rice - £67.5m
The West Ham midfielder has reportedly had a price tag of £150m put on him, with the Hammers keen to keep him at the club. Photo: Getty Images
. Mason Mount - £67.5m
The attacking midfielder is currently rated at his highest ever market value. Photo: Getty Images
. Bernando Silva - £67.5m
Manchester City have reportedly valued their midfielder at £80m, amid interest from Barcelona. Photo: Getty Images
1. Harry Kane - £90m
It is no surprise to see the England captain joint-top of the list. He has scored 183 goals in 279 club appearances as well as 50 international goals in 72 caps. Photo: Getty Images
2. Mohammed Salah - £90m
The Liverpool winger is entering the final year of his contract at Anfield - it is almost unthinkable a player of his quality could be available for nothing next summer. Photo: Getty Images
3. Kevin De Bruyne - £81m
The Belgian has been one of the Premier League's best players since joining Manchester City and is now worth more than the £55m paid for him. Photo: Getty Images
4. Phil Foden - £81m
The England youngster is hailed as one of the most exciting prospects in world football, something highlighted by his considerable market value. Photo: Getty Images