Kylian Mbappé is a major injury doubt for Real Madrid 's Champions League game with Manchester City on Wednesday after missing training, adding to an injury crisis for the team and under pressure coach Xabi Alonso.

The star forward did not join his teammates on the pitch at Madrid's Valdebebas training ground on Tuesday morning, joining an injury list of eight first team players who are expected to be unavailable to face City in the high-profile clash at the Bernabéu.

A source told ESPN that Mbappé had a muscular problem and would undergo tests later on Tuesday to determine his availability.

Madrid go into the City game having been beaten 2-0 at home by Celta Vigo in LaLiga on Sunday -- a game in which Mbappé also suffered a broken finger -- with just one win in their last fi

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