John Stones will be out for 'a while', Pep Guardiola says, after being substituted at half-time of Manchester City's win over Young Boys.
Stones missed City's first ten games of the season, returning a month ago as the Blues' injury issues looked to be shortening.
But after a mysterious half-time substitution against Young Boys in the Champions League, the defender now appears to have suffered a setback.
Speaking after the game, Guardiola said the England centre-back will be out for some time, and said he 'feels sorry' for Stones.
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