Poor: Fikayo Tomori
The centre-back who has been called up to the English national team on the back of his recent performances was less than perfect against Southampton. Fikayo Tomori has characterised his play so far with being able to defend solidly but also provide an outlet from the back and play the pass into midfield or a long diagonal to find attackers.
He got plenty of the passing wrong against the Saints. On more than one occasion, he gifted the opposition the ball in the final third and was rescued on one occasion by Kurt Zouma and the other by Jorginho.
It may be an isolated poor performance that we're seeing from a young defender who has been solid for Chelsea so far. Nonetheless, he will watch that footage plenty of times and wonder what he was doing in those situations. With Chelsea already leaky at the back, they can't afford for Tomori to falter.