Chelsea's season suffered a fresh setback with a disappointing defeat at Southampton, with Thomas Tuchel struggling to find a way to solve the issues that are plaguing them.
The Blues had actually gone ahead, when Raheem Sterling stayed cool to fire past Gavin Bazunu from close range. But the Saints stormed back into the game, with Roman Lavia scoring a stunner after a corner was only half-cleared.
And as the game entered first-half stoppage time, Adam Armstrong scored what proved to be the winner, with the Blues failing to find a way back into the match. Here, Mirror Football looks at five of the biggest problems facing Tuchel and Chelsea.
