Liverpool legend Graeme Souness has dropped his prediction for how long it will take Manchester United to challenge for the Premier League title after Sir Jim Ratcliffe’s remarks. Manchester United have struggled to return to the top of English football after legendary former manager Sir Alex Ferguson bowed out of Old Trafford in 2013. Ferguson led United to their last Premier League title in the 2012-13 season, with the Scotsman subsequently retiring as a manager after his 26-year reign at Old Trafford. The Red Devils have won silverware in the aftermath of Ferguson’s departure, but United fa…