And Costa, 29, is on their list of potential alternatives with Juventus open to selling the Brazilian.
Costa himself is ready to leave Turin after 101 appearances and 10 goals in the last three seasons.
His time at Juventus has been hampered by injuries and that is the precise reason why United are hesitating.
However, Costa’s style of football suits the style employed by Ole Gunnar Solskjaer at Old Trafford.
The English club are now reflecting on whether to make a bid for Costa, who is under contract at Juve until 2022.