Sandwiched between Premier League defeats to Manchester City and West Ham was the chaotic 2-2 draw in Valencia, which could have gone either way in the end.
Tammy Abraham’s absence has proven to be more costly than most envisaged, with Olivier Giroud rusty and Michy Batshuayi unused off the bench.
Villa meanwhile will be buoyant after taking a point at Old Trafford.
Here’s how you can watch the game live on television or online.
When and where is the match?
The match is at Stamford Bridge on Wednesday, December 4, with kick-off scheduled for 19:30 GMT.
Tammy Abraham is a doubt still with a hip injury, meaning he could miss out against his former club.
Ross Barkley will be out through illness.
Frederic Guilbert is out through suspension, while Anwar El Ghazi has a knee injury picked up in the 2-2 draw vs Man United, but Dean Smith welcomes back Jota.
Lampard left with problems to fix as Mourinho applies pressure
How can I watch the match?
The match will be available to watch and stream on Amazon Prime.
Chelsea: Kepa; Azpilicueta, Zouma, Tomori, Alonso; Kante, Kovacic; Willian, Pulisic, Hudson-Odoi; Batshuayi
Aston Villa: Heaton; Elmohamady, Konsa Ngoyo, Mings, Targett; Nakamba; Trezeguet, McGinn, Douglas Luiz, Grealish; Wesley
Aston Villa 17/2