Former Manchester United defender, Rio Ferdinand, has warned manager, Erik ten Hag that the club’s new minority owner, Sir Jim Ratcliffe, would sack him if the team fails to secure a top-four finish this term. In Ten Hag’s second season at Old Trafford, United find themselves in sixth place with 12 fixtures left. The Red Devils are now 16 points behind league leaders, Liverpool following a 2-1 defeat at Old Trafford to Fulham last weekend. When asked if Ten Hag will keep his job if United fail to finish in the top four, Ferdinand told Vibe with FIVE: “Given the structure behind him now it coul…