Chelsea could be boosted by the return of Kai Havertz for Tuesday's Premier League London derby with Arsenal at the Emirates Stadium.
The German forward missed last week's 2-0 loss to Brentford due to a knee concern, but manager Frank Lampard is confident that his problem will not affect his participation this week.
Kalidou Koulibaly will not be in with a chance of recovering from a hamstring injury, though, while Armando Broja (knee), Mason Mount (pelvic), Marc Cucurella (thigh) and Reece James (hamstring) are all absent as well.
Backup goalkeeper Marcus Bettinelli is also on the way back from an unspecified problem, but Kepa Arrizabalaga remains Lampard's undisputed number one over Edouard Mendy for the time being.
A nightmare outing for Cesar Azpilicueta against Brentford saw the Spaniard score an own goal before being taken off at half time, and a change in shape could see Trevoh Chalobah preferred in the right-back position.
Thiago Silva, Wesley Fofana and Ben Chilwell would likely complete a four-man rearguard if that is the case, while N'Golo Kante and Enzo Fernandez are shoo-ins for midfield starts.
Conor Gallagher and Mateo Kovacic will go head-to-head for the final spot in the engine room, and while neither covered themselves in glory against Brentford, the former - who has scored the only goal of Lampard's second era so far - may edge it.
Lampard should be tempted into some attacking alterations with Joao Felix and the returning Havertz, but Pierre-Emerick Aubameyang will likely start on the bench against his old club as Raheem Sterling holds his place.
Chelsea possible starting lineup: Kepa; Chalobah, Silva, Fofana, Chilwell; Fernandez, Kante, Gallagher; Felix, Havertz, Sterling
> Click here to see how Arsenal could line up for this match
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