N’Golo Kante, Callum Hudson-Odoi and Reece James joined the rest of the Chelsea squad for training on the eve of the Champions League game against Valencia.
Kante is struggling with an ankle problem and will miss Tuesday’s match along with Antonio Rudiger.
Defender Rudiger, just back from a knee problem, aggravated a groin injury in his comeback match against Wolves on Saturday.
Speaking at a news conference on Monday afternoon, Blues boss Frank Lampard described Kante, Hudson-Odoi and James as “fit but not match fit.”
Youngsters Hudson-Odoi and James are on the way back from a ruptured Achilles tendon and an ankle injury respectively.
They returned to action in an Under-23 game against Brighton on Friday and might feature in another Premier League 2 match, against Southampton, this weekend.