The 20-year-old had a successful loan spell at Ibrox last season and was a major player in helping them clinch the Championship and lift the Petrofac Cup.

The Light Blues have opened discussions with Tottenham to land Ball again, and would be willing to take him on loan or sign him on a permanent basis.

Ball would give boss Mark Warburton options as he can play as a defender or as a holding midfielder. The English youth cap is a player Warburton knows well, having worked with him at the Watford Academy.