Porto star Diogo Costa and Athletic Bilbao’s Unai Simon are two goalkeepers being monitored by Manchester United.
Manchester United news, exclusives and analysis
David de Gea has retained the no1 spot at Old Trafford this season and is in the last year of his contract.
United have the option to extend that by a further year but Erik ten Hag indicated in a press conference earlier this month the club would not rush into a decision over the Spaniard’s future.
While not a natural fit for Erik ten Hag’s long-term plans, de Gea has adapted well to the Dutchman’s demands this season.