Sunderland are said to be targeting a whole new team during the summer transfer window.
Leeds United, Aston Villa and Sheffield United have all been linked with Marcus Maddison in recent times.
Aston Villa have previously sent scouts to watch Peterborough United's Marcus Maddison.
Posh winger Maddison was a Leeds United target in 2016.
Posh chairman Darragh MacAnthony has been asked about Sheffield United's interest in his team's star man before.
Peterborough United's assist king Marcus Madisson apparently isn't the right profile for Aston Villa - at least according to his own club's owner.
Aston Villa have had scouts watching Peterborough United winger Marcus Maddison.
The Reds have already signed well from the lower leagues, from which there is a lot of talent available.
Sheffield United could be looking to strengthen their squad for a Championship campaign in the summer.
The winger has been in fine form for Peterborough United, attracting interest from several Championship clubs including Fulham.