Chelsea have been handed a fresh injury concern after Enzo Fernandez appeared to pick up a knock against Newcastle.
The midfielder was replaced by Armando Broja after just 32 minutes on Wednesday night.
Fernandez headed straight down the tunnel with a member of Chelsea’s medical staff and assistant manager Jesus Perez after he was withdrawn in a potential blow to Mauricio Pochettino’s men.
He had indicated to the bench minutes prior to the substitution, before attempting to continue.
The Blues are already without 10 first-team players, including captain Reece James and goalkeeper Robert Sanchez.
Supporters showed their concern on social media, with one commenting a broken heart emoji on X, formerly Twitter.
Another fan wrote: “Damn, we are cursed.”
Pochettino had recalled Fernandez to his starting line-up in the only change from Saturday’s win over Sheffield United.
The 22-year-old has missed just one match across all competitions so far this season.
Chelsea swooped to complete a then British record £105million deal for Fernandez back in January.
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The World Cup winner signed an eight-and-a-half year deal with the Blues and has since been a rare bright spark at Stamford Bridge.
Across 42 appearances, the Argentinian has scored three goals and provided three assists.