Antonio Rudiger trained with the rest of the Chelsea squad on Monday and could return to action in Tuesday’s all-important Champions League game against Lille.
Rudiger has made just one first-team appearance this season, having struggled with a knee problem and then a pelvic injury.
The German defender has been building up his fitness and boss Frank Lampard said on Monday that Rudiger “has a chance” of playing against Lille.
But Fikayo Tomori and Olivier Giroud did not take part in training and both players are unavailable to play.
“Tomori has a small, tiny strain around the hip area, so we’ve taken him out for a few days,” Lampard said.
A win in their final group game would seal Chelsea’s place in the knockout stage.
They would also go through if they draw and Valencia lose away to Ajax.