After coming down with a hamstring injury during a 5-1 trouncing over Newcastle United, central defender John Terry is set to be out of a crucial second leg in the Champions League against French giants Paris Saint-Germain.
Terry's leadership will be missed as the Blues have a big hill to climb in their crucial game at Stamford Bridge. A reliable defender who handles tough situations with ease is something every team needs, and Chelsea are blessed to have had him for this long.
Chelsea youngsters look to step up
The lack of youth being featured in the starting line-up has been a point of criticism for Chelsea in recent years. However, the likes of Ruben Loftus-Cheek and the recent explosion of young striker Bertrand Traore have shown that the young stars of Chelsea deserve their shot.
American defender Matt Miazga has been waiting patiently for his time to showcase his abilities. Although nearly one month ago manager Guus Hiddink stated Miazga is not ready for the first team, injuries to Kurt Zouma and John Terry have opened the door for him. But Miazga isn't the only young player to possibly be given minutes - Jake Clarke-Salter was called up to the first team last month to stregthen the defensive depth.
Ghanaian left-back Baba Rahman has recently been granted his wish of more minutes after admitting his frustrations of watching games from the bench. The 21-year-old has featured in recent games, with Branislav Ivanovic filling in at center back and Cesar Azpilicueta moving to his natural position at right back.
Other injury news
In what seems like a case of the injury bug biting members of the squad, some key components of the Chelsea team are due to return to the line-up on Wednesday.
Star striker Diego Costa is set to return to the starting eleven after missing Saturday's 1-1 draw with Stoke City. The Spaniard had a tendon problem, but after going through training on Monday showing no signs of injury so should be available. Fellow Spanish international Pedro also is set to return after also missing the match against Stoke with a hamstring problem.
Elsewhere, Radamel Falcao has returned to training following injury, but is not expected to feature in the 18.