Lionel Messi, who scored the winner for reigning champions Barcelona in Wednesday's 2-1 win over Dynamo Kiev, faces a race to get fit for the start of the Club World Championship after suffering an ankle knock, coach Pep Guardiola said.

"It seems it is an ankle strain," Guardiola said, indicating his Argentine star may struggle to get ready for Barca's Championship campaign starting on December 16 in Abu Dhabi.

u00a0

Lionel Messi