Juventus beat AS Roma 2-1 and AC Milan downed last-place Atalanta by the same score Saturday, keeping the two Italian league powerhouses tied atop the Serie A.
A disputed first-half penalty kick converted by Alessandro Del Piero decided the tense match at Stadio Olimpico in which former AS Roma players Emerson and Jonathan Zebina were booed every time they were in possession of the ball.
Andrea Pirlo scored an injury-time goal in yet another late win by Milan.
Juve and Milan have 60 points each, identical records of 18-6-3 and equal goal differentials.
Third-place Sampdoria, which hosts lowly Chievo Verona in Sunday's 27th-round matches, trails the leading duo by 16 points.
At Olimpico, Juventus withstood the initial pressure of the Roman team and capitalized on its first scoring chance in the 11th minute.
Roma goalkeeper Ivan Pelizzoli saved a short-range header by Zlatan Ibrahimovic, and Juventus defender Fabio Cannavaro headed in the rebound.
Antonio Cassano equalized in the 39th, beating an offsides trap and rushing unmarked into the penalty area.
Del Piero netted the decisive goal in the 44th from the penalty spot after two minutes of strong protests by Roma players.
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