The second-half substitute cancelled out Andrea Pirlo's free kick in the closing stages as the Juve's advantage at the top of Serie A shrunk to three points over Lazio.
After an extremely stretched first half that saw no goals, Andrea Pirlo fired home his eighth-career goal against Parma, more then he has netted against any other Serie A outfit, seven minutes after the restart. The Bianconeri sat back and attempted to see the game out but the Crociati kept their heads up and found a way to salvage a point and frustrate Juve.
Despite a boisterous atmosphere, both sides began fairly pensively. Juventus looked the more dangerous of the pair but two Fabio Quagliarella efforts that bounce wide of the goal were all Juve could muster in the opening 10 minutes.
As time passed the game became increasingly open, with Parma playing a more attacking role. Ishak Belfodil almost netted a goal to remember in the 21st minute, as he beat Martin Caceres inside the area, but he failed to curl the ball in at the far corner.
With 34 minutes on the clock, Belfodil finally managed to beat Gianluigi Buffon, but Stephan Lichtsteiner was back on the line to keep the ball out. The rebound fell to Amauri, but his attempted overhead kick sailed well over the bar.
The end-to-end action continued, as four minutes later Pirlo's brilliant free kick looked destined for the top corner, but a great save from Antonio Mirante kept the ball out.
Seven minutes in to the second half, though, Mirante could not emulate his first-half heroics. From the top of the box, Pirlo opted to shoot inside of the wall, and a deflection off of Jonathan Biabiany guided the ball past the despairing keeper.
Juventus' lack of urgency in the second half proved costly, as in the 78th minute a brilliant pass from Paletta caught Caceres out of position. Sansone made the most of it, latching onto the pass and firing a low shot past Buffon and into the far corner to force the draw and allow Lazio to climb within three points of Juventus atop Serie A.