Sunderland head to Birmingham City in the Championship tomorrow afternoon, and it could mark a debut for one Black Cats player. Sunderland head to St Andrew’s where they’ll go up against Tony Mowbray, and a couple of former players in Alex Pritchard and also Dion Sanderson. Mowbray is looking to pull his new side clear of danger after a terrible season so far for Birmingham City, whilst Michael Beale is looking to get his Sunderland side back in the top six. A 1-0 defeat away at Huddersfield Town in midweek leaves the Black Cats in 10th place of the table but still just one point outside the t…