Manchester United staged a massive comeback to defeat Aston Villa 3-2 in Tuesday’s Premier League Boxing Day fixture at Old Trafford. A brace from Alejandro Garnacho and a solitary strike from Rasmus Hojlund cancelled out Villa’s 2-0 first half lead. United climb up to sixth place on 31 points in the league table while Villa are in third on 39 points. John McGinn gave Villa the lead in the 21st…