John Stones' latest return from injury lasted just 45 minutes at Aston Villa, and he could now be set for another spell on the sidelines.
Stones was rushed back to the City starting line-up at Villa Park due to Ruben Dias' injury, but felt a recurrence of his previous injury and had to be replaced.
Pep Guardiola wouldn't offer any definitive update on his injured players, but predicted that Stones is unlikely to make the Everton clash on Boxing Day.
Stones has played just 12 times so far of which eight have been starts, and the Everton game would be the 12th game he has been unavailable for.
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