Manchester United are reportedly tracking Charlton Athletic left-back Morgan Fox.
The 22-year-old has broken into the Wales senior squad after impressing this season, and the Mirror claims that he could be on his way to Old Trafford as a replacement for long-term injury victim Luke Shaw.
West Ham United's Aaron Cresswell and Leeds United's Charlie Taylor have also been linked to United.
Aston Villa, Newcastle United and West Ham are also thought to be interested in Fox.