Bakayoko has previously made 42 appearances for Milan scoring one goal in the 2018/19 season and then he went on loan to French side Monaco and Napoli.
Kurt Zouma has made 36 appearances for Chelsea last season, helping them to Champions League triumph and a fourth place finish in Premier League.
Manchester City are up against Lionel Messi-powered Paris Saint-Germain in Group A, with Liverpool set to take on Atletico Madrid yet again.
Chelsea have been heavily linked with a move for Jules Kounde all summer, as Thomas Tuchel wants to bolster his defence.
Chelsea are yet to concede a goal in the new Premier League season and Andreas Christensen has played a crucial role in maintaining the defensive stability.
The Scottish full-back missed Liverpool’s opening two games of the Premier League season due to ankle ligament damage.
After returning to Stamford Bridge, the Belgian striker scored in his second debut for Chelsea against Arsenal in the weekend.
The Belgian striker scored in his second debut for Chelsea as the Blues ran out 2-0 winners against Arsenal in the Premier League.
Bayern Munich beat Paris Saint-Germain 1-0 in the final of the 2020 UEFA Champions League, thus completing their second continental treble.
While praising Tuchel’s tactical ability, the Belgian striker has informed that the Chelsea manager sets a different plan for each match.