Juve beaten at Samp, hapless Benevento lose in stoppage time
Titleholders Juventus were sent crashing to a 3-2 defeat at Sampdoria on Sunday and hapless Benevento were denied their first point of the season when they lost 2-1 to Sassuolo in stoppage time.
Federico Peluso's 94th-minute winner for Sassuolo, which came minutes after his team missed a penalty, meant that bottom team Benevento were condemned to a record-extending 13th straight defeat.
Juventus rested goalkeeper Gianluigi Buffon and defender Andrea Barzagli, who both confirmed their international retirements after playing in Monday's 0-0 draw with Sweden which meant that Italy failed to qualify for the World Cup.
The visitors missed a host of first-half chances then collapsed after the break as Sampdoria maintained their perfect home record.
Benevento gifted Sassuolo the lead as a backpass was intercepted by Simone Missiroli who then left Alessandro Matri to tap into an empty net after 57 minutes.
Benevento held out until stoppage time when Sassuolo were awarded a penalty for handball which Domenico Berardi smashed against the bar.
The home team's relief was short-lived, however, as Peluso headed in from a corner for the winner from the next attack.
Torino and Chievo drew 1-1 as did SPAL and Fiorentina while Cagliari won 1-0 at troubled Udinese.