Kalidou Koulibaly who joined from Napoli is seen as the right replacement for Antonio Rudiger who was one of the key to the Chelsea success under Thomas Tuchel.
The Blues have been trying to sign Fofana for the last three weeks and with the transfer window drawing to a close, the player has decided to agree personal terms as the clubs continue talking.
While the fact he has agreed personal terms even before the two clubs strike a deal is evidence of how much he wants to swap Leicester for London.
According to the Express, Chelsea have already had two bids for the defender turned down by Leicester.
But they are preparing a third bid which is close to Leicester’s valuation of the defender.
The Blues have started the season strong after a 1-0 win over Everton was followed by a hard fought 2-2 draw against Tottenham.
The draw against Tottenham would have been particularly painful to Thomas Tuchel who watched his team dominate the game only to be pegged by a Harry Kane late header to draw 2-2.