#2 Alisson Becker
The defense has been an area of concern for Zidane, having leaked 34 goals already this campaign, with goalkeeper Keylor Navas in particular failing to convince. Putting that in context, it is more than twice the amount conceded by Barcelona.
Florentino Perez has never been a fan of the Costa Rican stopper, and had a swap deal for United's David De Gea fail due to a faulty fax machine. This summer, Perez will hope to finally land a keeper of his choice.
David De Gea and Thibaut Courtois are unlikely to come cheap, while long-term target Kepa Arrizabalaga recently signed a long-term contract.
Alisson represents a world-class option, with Liverpool interested aswell.
The Brazilian has been a standout performer for club AS Roma, aswell as for his country. At 6ft 3 inches, he has decent height, good shot-stopping ability, and excellent distribution.
Alisson would definitely be a good signing.