AC Milan fought back from two goals down but lost 4-2 at home to Parma after playing almost the entire Serie A match with 10 men on Sunday.
Former Milan striker Antonio Cassano scored a brace, including a penalty after Rossoneri goalkeeper Christian Abbiati was sent off in the fifth minute for bringing down Ezequiel Schelotto.
Adil Rami’s header and a penalty from Mario Balotelli saw Milan pull level but Amauri andJonathan Biabiany secured the win for Parma.
It was the second successive match Milan has conceded four goals after its hefty Champions League defeat to Atletico Madrid.
There were protests outside San Siro before the match, while Balotelli was booed almost every time he touched the ball.
Parma provisionally moved into fifth spot, two points ahead of Fiorentina which hosts Chievo Verona later.
Serie A leader Juventus also plays this evening, at Genoa.
Elsewhere, bottom club Sassuolo beat 19th-place Catania 3-1 and nine-man Livorno beat Bologna 2-1 in tense relegation battles.
Bologna has replaced Livorno in the bottom three.
Lazio won 2-0 at Catania while earlier Atalanta eased to a 3-0 win over Sampdoria.
Milan got off to bad start when Abbiati came rushing out of his area and clattered into Schelotto. He was shown a straight red card and substitute goalkeeper Marco Amelia’s first task was to pick the ball out of the back of the net following Cassano’s penalty.
Balotelli almost leveled 10 minutes later but he sidefooted a corner off the base of the right post.