Darwin Nunez and Antony dos Santos are the highest valued players outside of Europe's 'Big Five' leagues, according to a new study published by the CIES Football Observatory.
Highly-rated Benfica striker Nunez is valued at £60million, Manchester United target Antony has a £48m valuation, and there is whole host Sporting Lisbon, Porto and Ajax stars among the top 20 on the list.
Below the leading pair is Lisbon defender Goncalo Inacio at 44m and PSV Eindhoven striker Cody Gakpo at £42m.
Further down the list is Lisbon duo Matheus Nunes and Pedro Goncalves both valued around £41m.
Nunes and Goncalves are just yet more proof of Lisbon's talent with three players inside the top six.
Benfica forward Goncalo Ramos priced at around £35m, not highly regarded as his team-mate Nunez, but he remains hot property.
Porto goalkeeper Diogo Costa (£35m) was next on list with Club Brugge forward Charles De Ketelaere (£33m).
Sebastien Haller (£33m), most West Ham fans would believe to be a surprise inclusion, but his Ajax form is proof just why he rounds up the top 10.
Yet another Manchester United target sits in 11th place with Ajax defender Jurrien Timber being valued at £32m.
Orkun Kokcu is in the 12th after impressing this season for Feyenoord, having scored 9 times this campaign.
Flamengo forward Gabriel Barbosa is the only player on the list from outside of Europe with a valuation of around £32m.
Hot prospect and Ajax midfielder Ryan Gravenberch is just behind with a valuation of £31m.
The 19-year-old has become a first-team regular in the Eredivisie this campaign under Erik ten Hag - making 42 appearances in all competitions.
AZ Alkmaar forward Jesper Karlsson, Porto midfielder Vitinha Ferreira, and Club Brugge's Noa Lang were sat just behind Gravenberch all valued between £27m-£31m.
Porto's attacking midfielder Fabio Vieira has been key to his club's success as they currently lead the league.
He has found the net seven times and picked up a further 15 assists in all competitions at the age of just 21.
Red Bull Salzburg forward Karim Adeyemi bucks the trend with most of the players coming from Portugal and Holland with two coming from Club Brugge in Belgium.
Adeyemi has notched 21 goals and leads the Austrian Bundesliga in the goalscoring charts.
Ajax centre-back Lisandro Martinez rounds off the top 20 with valuation of £25m.