The Mackem-turned-Geordie is 4/1 to switch allegiance once more.
The Ginger Pirlo could be set to become the most hated man in the North, the former Black Cats player left his boyhood club back in 2014 on a free, to join bitter rivals Newcaslte. Despite the uproar caused by his first move, a switch back to Sunderland looks like it could be on the cards.
The English midfielder has been fringe of the first team this season, and is rumoured to be lookign for a move on Deadline Day to secure regular football.
Shockingly, Sunderland are second favourties to re-sign the midfielder, Skybet have priced them as 4/1 to capture Colback. Despite the majoirty of the Black Cat fans hating the Newcastle player, they could announce the signing today.
Chris Coleman could do with bolstering his squad as they look to avoid the drop, following a dismal display last night, the North West club are 11/10 to be relegated to League One.
Oddschecker spokesman, George Elek: 'Jack Colback obviously loves the north-east and he seems reluctant to move too far as a move to Forest looks like it could be scuppered by the Black Cats. Despised having made the reverse journey four years ago, Colback clearly has thick skin if he is willing to risk the wrath of the Toon Army this time around'