Chelsea are working hard to secure a deal for Porto goalkeeper Diogo Costa.
The shot stopper, who is also being tracked by Manchester United, is the Blues' no.1 target.
While United are also looking at Inter Milan's Andre Onana, Chelsea are firmly in the Costa race.
Per A Bola, the Blues have money to burn after selling Edouard Mendy to Al Ahli in Saudi Arabia.
Kepa Arrizabalaga looks set to start pre-season as the club's no.1, he will soon have competition.
A move for Costa appears very likely, with agent Jorge Mendes said to be working on the deal.
