Crystal Palace midfielder Neil Danns is at the centre of an Old Firm transfer battle.
The Daily Mail says Celtic are weighing up whether to join Rangers in an Old Firm fight for Danns.
Ibrox boss Ally McCoist has pinpointed the 28-year-old free agent as a one of his first signings of the summer and hopes to open contract talks with his representatives this week.
Danns also features on a list of targets drawn up by Celtic's scouting staff.
And, while the Parkhead club have yet to decide whether to launch a move for the Liverpool-born player, it raises the possibility of yet another tug-of-war between the Glasgow giants.