Manchester City boss Pep Guardiola admits John Stones' injury is a concern.
Stones was forced off in the 43rd minute with an ankle injury during last night's win at Everton.
Guardiola said: "It doesn't look good, but we will see. It's his ankle."
Stones has managed just eight appearances for City this season after suffering a hip injury in preseason.
City won 3-1 at Goodison Park on Wednesday night.