Chelsea will be forced to sweat on the fitness of midfielder N’Golo Kanté after he missed training on Monday with a knee injury.
Prior to the Blues flying out to Baku on Monday afternoon for their Europa League final against Arsenal, they underwent a light session at Cobham.
However, Kanté did not take part as he received further treatment on the knee issue he sustained over the weekend.
Despite the concern over his fitness, the Guardian report that Chelsea have not yet given up hope of the Frenchman making a late recovery.
Kanté, who only just shrugged off a hamstring problem, twisted his knee while making a tackle in training on Saturday.
An initial diagnosis put his participation in the final in Azerbaijan in major doubt, although the club are now more positive that he can play a part.
The former Leicester City man has travelled with the squad and was moving freely around the training ground prior to departing for the airport.
It is a blow that Maurizio Sarri could do without, as midfielder Ruben Loftus-Cheek has already been ruled out with a ruptured Achilles.