All of the top current Sunderland stories including, Roy Keane’s warning, emerging managerial claim and worrying Chris Rigg theme. Roy Keane sends Sunderland warning A lot has gone wrong for Sunderland this season. After hopes that they would kick on from their last campaign, things couldn’t have gone much worse. Now, the Black Cats sit without a permanent manager, stuck in the middle of the Championship. Many factors can be argued as to blame but Keane highlights one major issue with the Sunderland squad. Much of the first team are young with the Black Cats outing many of the experienced play…