Dan Neil has warned his Sunderland teammates what they need to do after the international break. Sunderland have endured one of the worst periods of football they have been through in a very long time, having picked up only one point from the previous seven games in the Championship. The Black Cats have had to deal with a very young squad this season in particular, with the likes of Danny Batth and Alex Pritchard leaving the club. The lack of experience at the Stadium of Light is something that Dan Neil has already admitted has proven to be an issue in the dressing room. The 22-year-old has be…