Manchester City manager Pep Guardiola is worried that goalkeeper Claudio Bravo could be ruled out for a significant period.
Bravo's debut campaign at City has been plagued by numerous errors as well as injuries and the Chilean suffered another blow during the Manchester derby on Thursday night as he was stretchered off the pitch after suffering a calf injury.
City are now sweating over the fitness of Bravo and Guardiola has conceded that the 34-year-old could be ruled out for his side's important run-in from now until the end of the season.
Guardiola said: "I haven't spoken to the doctor but it looks like the calf.
"We will know more tomorrow. He has an injury and it looks like it could be a few games, but we will have to see."