Ole Gunnar Solskjaer has admitted that during his time as Manchester United boss there was one player that consistently caused him problems.
Solskjaer returned to the club as manager after a storied career as a player at Old Trafford, playing a crucial role in the side that won the Treble in 1999.
However, he was unable to have quite the same impact in the dugout, with his side losing 38 games and drawing 33 more in his 149-game stint at the helm of a side that was largely unsuccessful.