Inter Milan's Serie A title push hit another stumbling block on Sunday after a 1-1 draw at lowly Lecce as Ante Rebic fired city rivals AC Milan to a last gasp 3-2 win over Udinese.
Antonio Conte's Inter looked to be bringing home maximum points from his hometown team, where he started his footballing career in the 1980s, when Alessandro Bastoni headed the away side in front with 18 minutes remaining.
But Marco Mancosu grabbed a precious point for the southerners five minutes after going behind.
Inter have won just two of their last six league games but are one point behind leaders Juventus, who can however open up a four-point advantage when they host Parma later on Sunday.
Conte's side are now also under threat from Lazio who are just two points behind with a game in hand after hammering Sampdoria 5-1 on Saturday.
Earlier Ante Rebic hit a brace, including the stoppage time winner, against Udinese that snatched a dramatic win that gave troubled AC Milan back-to-back league victories. Star striker Zlatan Ibrahimovic got his first start at the San Siro after scoring last weekend at Cagliari.
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The 38-year-old Swede did not get to celebrate on front of the home crowd but he has provided a confidence-boost for the seven-time European champions, who have taken seven points in three matches since his return.
"We started a little tense," said Milan coach Stefano Pioli.
"But I'm satisfied with our performance, we put our heart and soul into winning it.
"The arrival of Ibrahimovic has given us even more depth and conviction, which has helped us."