Doncaster Rovers transfer gossip: Niall Mason linked with Sunderland, Birmingham City and Hull City
The 21-year-old has made 42 appearances for Rovers this season, rarely letting the side down despite playing in several different positions in defence and midfield.
Mason signed a two-year deal at the Keepmoat Stadium last May after spending last season on loan at Doncaster - his first season at senior level.
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Hide AdThe former Aston Villa, Blackburn Rovers and Southampton youngster spent time with Real Madrid’s academy when he was aged seven.
Sunderland are second bottom in the Championship - eight points from safety going into the final six games of the league campaign - and are reported to already be planning for life in League One.
Birmingham, Hull and Leeds United have also been credited with an interest in Mason.