In terms of the squad available for Chelsea's visit to Goodison Park, Bryan Oviedo is a major doubt having been hospitalised earlier this week with bronchitis. The Blues have three late fitness tests for Gareth Barry, Aaron Lennon and Tom Cleverley.
Barry and Cleverley are both described as ill while Lennon suffered a hamstring injury against the Hammers last weekend. Oviedo was reported to have suffered from the same strain that had previously affected Barry, Cleverley, and Arouna Kone.
Defenders Tyias Browning and Tony Hibbert remain out with long term injuries.
The visitors are also waiting on the fitness of three key players with Eden Hazard, Diego Costa and John Terry all having injury concerns. Terry narrowly missed out on being involved against Paris Saint-Germain with a hamstring injury he picked up against Newcastle United. Belgian winger Hazard and Spain's Costa are both suffering from hip injuries picked up in their midweek Champions League loss to Paris St. Germain.
Kurt Zouma and Radamel Falcao are both out for the near future, with no return dates.