31-year-old spotted back in Chelsea training yesterday, Graham Potter has said he's 'fantastic'
It has now been three games for the Blues without one of their summer signings, which have resulted in a drop of standards across the boards.
The club are without a win in the two league games he has not been present, and his dominance at the back would have been essential to potentially avoid the collapse at the weekend.
The Blues fell to a 4-1 defeat at the hands of Brighton, and looked all out of sorts at the back despite the presence of Thiago Silva.
He also missed the draw against Manchester United, and starting a natural centre-back instead of two left-backs may have allowed them to avoid an early tactical change.
One man who will be delighted to have him back amongst the ranks is Graham Potter. The manager previously described him as ‘fantastic’ following his response to not starting his first few games in charge.
Koulibaly back in training
The Senegal international may not be risked tomorrow night, with Chelsea’s fate in the Champions League already secured.
They are already confirmed as group winners, following a sensational turnaround under Potter in their three hardest games on paper.
However, Blues fans will be more hopeful he is ready for Sunday.
Chelsea will be looking forward to hosting Arsenal, who put to bed any thoughts of them running out of steam with a hammering of Nottingham Forest last time out.
A win in that would be huge for Potter, who outside of the victories against AC Milan is still looking for his first big domestic scalp as Chelsea boss.
If available, Koulibaly will certainly come back into the fold, likely seeing Marc Cucurella drop to the bench instead of playing out of position.