For observant and long-term fans of the English Premier League, it's rare to see the undisputed champions of English football, Manchester United, lose a game with a five-goal deficit. It's absurd to even imagine, let alone suggest with any sort of seriousness.
However, nearly a month ago in a high-profile clash against crosstown and bitter rivals Manchester City, the unthinkable happened. Manchester United, at the fortress Old Trafford itself, were humiliated like never before, in a match most fans of the Red Devils will hope to soon erase from their memories.
Though the Red Devils haven't lost a single game in any competition since then, a string of sub-par and unconvincing performances has left an eerie feeling around all corners of Old Trafford nowadays. Instead of taking the game to the opponent, as most have grown accustomed seeing Sir Alex Ferguson's men do week in and week out, Manchester United seem a shadow of the team they were last season.
Currently sitting second, five points adrift from league leaders Manchester City, as well as having had to endure some tough outings in Europe, the Red Devils are in a precarious and unfamiliar situation. It's one that's left most wondering what happened to the team that so easily dominated both in national as well as continental fixtures.
This slideshow tries to examine six possible reasons Manchester United may be currently struggling in their footballing endeavors.