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The club's strategist Pep Guardiola immediately after the match with Valencia due to severe back pain was taken to the hospital.
The 40-year-old specialist was sitting on the substitutes bench during the victorious duel in Valencia, while instructions for the footballers were more actively given by assistant Tito Vilanova.
Guardiola visibly suffered pain more than once, so after flying to Barcelona, he immediately received medical care.
There is almost no doubt that the coach will not be able to lead the team in Saturday's match against Zaragoza.