Former Manchester United striker Dimitar Berbatov says they should move for Fulham midfielder Joao Palhinha.
The Portugal international is enjoying a stunning season and is wanted by a host of big-six clubs.
Ex-Red Devils striker Berbatov told Betfred: "Yes, he certainly has the quality to do so.
"He has everything that a holding midfielder needs. He's not afraid of challenges, he can pass, he's great at spraying a diagonal ball and switching the play. He's also capable of scoring goals too.
"If a team like Manchester United, or a team of a similar calibre, comes for him, then he's going to think it's time for the next step and to win trophies.
"He can't believe that all the hard work is done after one season because remaining consistent is going to benefit his career a lot more. He is good enough to play for Manchester United at the moment."