Unbeaten Juventus snatched a late goal to draw 1-1 at AC Milan in Serie A's top of the table clash on Saturday after the hosts had a goal disallowed when officials failed to spot the ball had crossed the line.
Antonio Nocerino gave Milan a 14th minute lead and Sulley Muntari appeared to head the second goal soon after, TV replays clearly showing the ball had gone over the line before keeper Gianluigi Buffon clawed it away, but play was waved on.
Juve made the most of their escape and salvaged a point with seven minutes to go when substitute Alessandro Matri smashed in a right-foot volley from close range, just after he had a goal disallowed in another refereeing controversy.
Leaders Milan stayed one point clear at the top, with 51 points from 25 matches. Juve, who had Arturo Vidal sent off after 89 minutes, have a game in hand.
Juve have gone 27 league and cup matches this season without defeat and had already beaten Milan once in each competition.
"There's no sadness, we played a good match," Milan coach Massimiliano Allegri told the club's website. "The 'goal' would have damaged them and it would have been a different game."
Opposite number Antonio Conte told Sky Sports Italia: "I can say that two good goals were disallowed. I don't think Matri's counts for less."
Argentine striker Rodrigo Palacio scored twice in the last 18 minutes to give 10th-placed Genoa a 2-2 draw at home to Parma, who are 13th, in Saturday's other game.
Massimo Gobbi and Sergio Floccari netted early in each half for the visitors.
Udinese, eight points behind Juve in third spot, visit Bologna on Sunday when the highlight is troubled Inter Milan's trip to a Napoli side buoyed by a midweek 3-1 Champions League win over Chelsea.
