Mario Balotelli and work-rate, inconsistency, mentality, and volatile temperament and arrogant behaviour on the pitch, which has often led him to pick up unnecessary bookings throughout his career. Balotelli has also been accused of diving, and is thus regarded by teammates and the media as a promising but undisciplined player. Due to his powerful shot, Balotelli is also a set-piece specialist, and is regarded as one of the best penalty kick takers in world football, a view backed by his former Manchester City goalkeeping teammate Joe Hart. Balotelli missed his first competitive penalty against Napoli on 22 September 2013 when it was
Mario Balotelli Juventus fans even during matches not involving Inter, leading to Juventus being fined twice and the club ultimately punished with a partial stadium closure. Balotelli's disciplinary problems and his difficult relationship with Mourinho continued in the 2009–10 season. In November 2009, Inter drew 1–1 against Roma, after which Mourinho criticized his players, going as far as saying Balotelli "came close to a zero rating". Balotelli had another negative encounter with Juventus fans in the heated "Derby d'Italia" encounter in an away match against Juventus on 5 December 2009, which Inter lost 2–1. When he was elbowed by Juventus midfielder Felipe