Chelsea host Tottenham on Sunday in what is one of the biggest games of the Blues' season.
Defeat to Spurs would likely end any chance Antonio Conte's side have of securing a top four finish, thus guaranteeing Champions League football in 2018/19.
Chelsea did actually defeat Tottenham in the reverse fixture - securing a 2-1 win at Wembley on just the second week of the season - but they enter this game in the midst of an injury crisis.
Both Thibaut Courtois and Andreas Christensen are expected to miss the match due to fitness issues, meaning Conte could be forced to call Gary Cahill and Willy Caballero up to his starting line-up.