Robert Sanchez is set to miss the entire festive period after Chelsea confirmed he and Marc Cucurella will join Reece James in having extended spells on the sidelines.
Goalkeeper Sanchez was forced off with a knee injury at Everton having initially picked up the problem a few days earlier at Manchester United.
Chelsea have yet to put an official timeline on how long goalkeeper Sanchez will be sidelined though sources expect he will be unavailable for around four weeks.
Such a spell out would leave Chelsea without Sanchez until the middle of next month.