Chelsea are in talks to sign Atletico Bilbao goalkeeper Kepa Arrizabalaga for a record fee of £71m.
The transfer would set the world record paid for a keeper, surpassing the estimated £66.8m that Liverpool paid for Alisson in July.
Arrizabalaga,23, would be brought in for Belgium international Thibaut Courtois, who has yet to return to training and is linked with a move to Real Madrid.
Kepa is Spain's number two behind Manchester United's David de Gea and has one international cap.
He has spent the past two seasons in Bilbao's first team, making 53 La Liga appearances.