Manchester United pulled out a deal to sign a goalkeeper last week following discovering a problem following a medical, according to journalist Alan Nixon.
The Premier League giants are yet to sign someone this summer but are prioritising bringing in a centre-back, midfielder and a forward.
Talks are ongoing for several potential targets and major moves are expected to happen in the next few weeks.
However, the club came to close to signing someone last week as a young goalkeeper was set to join Manchester United.