Miralem Pjanic thought he had scored from a free kick, but the goal was ruled out for offside. Loris Roselli/NurPhoto via Getty Images

Juventus manager Massimiliano Allegri said AC Milan players influenced the referees to disallow his side's goal in Saturday's 1-0 defeat at the San Siro.

The outcome could have been different after a first-half free kick from Juventus midfielder Miralem Pjanic was controversially disallowed for what looked a tight offside call, having initially been given by the officials.

And Allegri suggested the officials would have let the goal stand if not for the remonstrations of the Milan players.

"They did well to score and we were unlucky," Allegri told Mediaset Premium. "We played well on a technical level and we had scored, but it was disallowed.

"These things happen. Unfortunately the goal was valid, but Milan's protest made the referee doubt his own decision.

"We should, as teams, focus on playing football and not put more pressure on to the referees. I want to understand whether it was the referee or the assistant who reversed the call."