Chelsea could be without N'Golo Kante and Alvaro Morata at Crystal Palace on Saturday.
The Premier League champions are waiting to learn the full extent of midfielder Kante's hamstring injury sustained while on international duty with France.
And, while the Blues are optimistic Morata's hamstring injury is not as bad as first feared, head coach Antonio Conte could opt to give the Spain striker and Kante additional rest ahead of next week's Champions League clash at home to Roma.
Kante came off in the first half of France's 1-0 win in Bulgaria on Saturday and withdrew from Les Bleus' squad to face Belarus on Tuesday night.