Earlier this week, Teamtalk reported that Celtic, Sheffield United and Derby County are showing keen interest in signing Paddy McNair this summer.
The 24-year-old joined Boro last season from Sunderland and made 23 appearances in all competitions.
The 29 times capped Northern Ireland international, who can play in midfield or defence, has struggled for regular game time, and could be looking to move away from Riverside.
Although the new Boro boss Jonathan Woodgate wants to take a close look at him before making any decision, the club hierarchy are tempted to cash in on the former Manchester United player.