The club's new manager, Ruben Amorim, is trying to create a team in his own image. He is said to be a fan of Martinez, a 32-year-old World Cup winner who may leave Aston Villa this summer.
According to a former Manchester United chief scout, the club is eager to sign Martinez as he is seen as a significant improvement over current goalkeeper Andre Onana. Onana has had a difficult two-year spell at the club and the team is looking to move forward.
The only obstacle in Manchester United's pursuit of Martinez is the need to get rid of Onana first. The team does not want to have both goalkeepers on the books at the same time.
Manchester United is waiting for a bid to be made for Onana so that they can start speaking with Aston Villa about a potential deal for Martinez.