Chelsea have agreed a deal with Sporting CP to sign another one of their starlets in Dario Essugo, following on from striking a £40million deal for 17-year-old wunderkind Geovany Quenda.
Essugo, 20, will cost £18.5m and sign a seven-year deal with the option of an eighth when he makes the move to London this summer.
No sell-ons or add-ons are believed to be included in the transfer.
Chelsea have been tracking the ball-winning midfielder for some time, with the Portugal Under 21 international currently on loan with Spanish side Las Palmas.
He will add to Chelsea’s squad depth ahead of another hectic season which will follow on from the Club World Cup and inevitably place strain on Moises Caicedo and Co.