Soccer:Manchester City striker Mario Balotelli has suffered a knee injury while training with Italy, the Italian Football Federation have confirmed.

The 20-year-old reported a recurrence of a problem with his right knee minutes into a training game against the Italy under-18 side.

The former Inter Milan forward will be assessed by Italy medical team ahead of Friday’s Euro 2012 qualifier against Estonia in Modena and a friendly with the Republic of Ireland in Liege the following Tuesday.

Balotelli endured a frustrating time with injuries in his first season in the Premier League.