The Blues suffered a 2-0 home defeat to Brentford in the Premier League on Saturday afternoon, with the result leaving them down in 11th position in the table.
Mauricio Pochettino's side have overcome AFC Wimbledon and Brighton & Hove Albion in this season's League Cup and will now be aiming to progress to the quarter-finals of the tournament.
Here, Sports Mole rounds up Chelsea's latest injury and suspension news ahead of their clash with Blackburn, who are currently 12th in the Championship table.
Ben Chilwell
Status: Out
Type of injury: Hamstring
Possible return date: Unknown
Chilwell remains on the sidelines for Chelsea due to a hamstring issue, and it is unlikely that the England international will be back on the field until December.
Christopher Nkunku
Status: Out
Type of injury: Knee
Possible return date: Unknown
Nkunku is yet to make his debut for the Blues due to a serious knee injury, but he is expected to be back on the field before the end of the year.
Wesley Fofana
Status: Out
Type of injury: Knee
Possible return date: Unknown
Fofana faces a battle to return before the end of the 2023-24 campaign, with the Frenchman undergoing a knee operation in the middle of July.
Trevoh Chalobah
Status: Out
Type of injury: Thigh
Possible return date: Unknown
Chalobah is yet to feature this season due to a troublesome thigh problem, and the defender will again be unavailable for selection against Blackburn in the EFL Cup.
Carney Chukwuemeka
Status: Out
Type of injury: Knee
Possible return date: Unknown
Chukwuemeka has suffered a recurrence of a previous knee injury, and the midfielder is now expected to be on the sidelines until at least after the November international break.
Romeo Lavia
Status: Out
Type of injury: Ankle
Possible return date: Unknown
Lavia is yet to make his debut for Chelsea due to a lack of fitness and an ankle problem, and the midfielder will again definitely be sidelined for the contest with Blackburn.
Marcus Bettinelli
Status: Out
Type of injury: Unspecified
Possible return date: Unknown
Bettinelli has not made a matchday squad this season due to an unspecified injury, and it is unclear when the experienced goalkeeper could be available for selection once again.
Armando Broja
Status: Out
Type of injury: Knee
Possible return date: Unknown
Broja was again missing against Brentford due to a new complaint, and the experienced forward is also expected to be on the sidelines for the clash in the EFL Cup.
CHELSEA'S SUSPENSION LIST
Chelsea have no suspension issues for this match.