Mario Balotelli scored twice, including a hugely-controversial penalty three minutes into stoppage time, on his AC Milan debut to give them a 2-1 win over Udinese – three days after completing his move from Manchester City.

In Spain, Lionel Messi scored for the 12th successive La Liga game as Barcelona drew 1-1 at Valencia. Tito Vilanova's side are now nine points ahead of Atletico Madrid, who beat Real Betis 1-0.