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Matthijs de Ligt's handball enabled Marco Mancosu to score from the spot in the 56th minute and earn the hosts their first home point of the Serie A season at Stadio Via del Mare.

Paulo Dybala, the hero of Juve's midweek UEFA Champions League win over Lokomotiv Moscow, had not long earlier opened the scoring with a spot kick of his own.

But there was no late saviour for Sarri's men on this occasion, the loss of Miralem Pjanic to a muscle problem compounding a result that would have forced them back into second place if Inter had beaten Parma later in the day.

But Antonio Conte's side could not make the most of Juve's slip-up, drawing 2-2 in that match, leaving a relieved Sarri and his team to remain in top spot.

Juve felt aggrieved not to be awarded an early penalty for Panagiotis Tachtsidis's trip on Emre Can.

Further appeals were waved away when Danilo went down under close attention from Marco Calderoni.

Gonzalo Higuain did turn home Alex Sandro's angled drive in the 15th minute, but the goal was disallowed for offside after a VAR (video assistant referee) review.

The striker then guided a low shot across the face before Lecce goalkeeper Gabriel denied Dybala amid sustained Juve pressure.

There was no stopping the Argentina international from 12 yards five minutes after the interval, referee Paolo Valeri having finally pointed to the spot after replays confirmed Jacopo Petriccione's challenge on Pjanic took place in the box.

A second spot-kick quickly followed as Calderoni's cross from the left fizzed against De Ligt's arm.

Lecce captain Mancosu made no mistake and the Bianconeri's problems soon grew greater, with Federico Bernardeschi's failure to score after rounding Gabriel preceding Pjanic's forced withdrawal.

An injury issue for Mancosu effectively left Lecce, which had used up its substitutes, to defend with 10 men for the final 15 minutes.

But Leonardo Bonucci's errant volley was the closest Juve came to capitalising.