Since joining from Arsenal in 2020, the 32-year-old has established himself as one of the Premier League's top goalkeepers, earning accolades such as the Yashin Trophy and The Best FIFA Goalkeeper award. With Wojciech Szczesny’s future looking uncertain at Barca, they may be in the market for a new shot-stopper to rival current first-choice goalkeeper Marc-Andre ter Stegen.
As for United, their interest comes amid ongoing doubts over Andre Onana, who has come under scrutiny for some high-profile errors. With Ruben Amorim continuing to evaluate his squad, he may see Martinez as a contender to be his new No.1.