The Red Devils have reportedly made queries over Julian Draxler, who has been in fine form at Euro 2016.
According to Bild, the midfielder has told Wolfsburg he is open to leaving, despite having a five-year contract at the club.
Meanwhile, Juventus are eyeing Belgian international Axel Witsel.
The midfielder wants to leave Russian outfit Zenit St Petersburg, and Juve are plotting a €20-million plus Roberto Pereyra offer to force their hand.
And Inter face a battle holding onto defender Juan Jesus, reports Mediaset.
They say Chelsea have identified the 25-year-old as an alternative to Roma defender Antonio Rudiger, who picked up a bad injury while on Euro 2016 duty.