Porto have consistently played the transfer market as well as any club in the world, selling players at a great profit.

James Rodriguez, Hulk, Radamel Falcao and Pepe are some of Porto's most well-known transfers.

Vincent Aboubakar, Yacine Brahimi, Ruben Neves and Giannelli Imbula are four players most likely to command large fees in the near future. 

Aboubakar is Porto's main striker following the departure of Martinez.

Brahimi is a skilled winger that had 164 take-ons in La Liga during the 13-14 season.

Neves is just 18 and could be used at the base of a midfield.

Imbula is a promising box-to-box player.