Window 21 is a case of what might have been, not for the player but for the club.
A list of home-grown disappointments have worn this shirt - Dave Farrell, Paul Browne, Lee Collins, Darren Byfield, JLloyd Samuel, Steven Davis, Ciaran Clark. None quite reached the heights hoped of them, although Davis has clearly gone on to show his potential elsewhere.
Currently occupied by Alan Hutton, and previously Jordan Bowery and Nicky Shorey, you could make a pretty good argument that this shirt is cursed.
One player wore it well, though, and I can't help but wonder what might have happened if we'd just given him the chance he craved...
Honourable mentions - Steven Davis, Jordan Bowery (just for that wheelchair gif)
Dishonourable mentions - nobody really. The list of names just makes me feel a bit sad.