Max Allegri's assistant says Napoli's backline dropped too deep in a second half Juventus dominated, as fresh injuries compound a season already eight points off last year's pace.
Tommaso Pobega's volley and a converted penalty from Federico Bernardeschi secured a third straight league win for Bologna, with goalkeeper Lukasz Skorupski saving a late spot kick to protect the result against Monza, Football Italia reports.
Kai Havertz converted Declan Rice's cross inside 16 minutes as Arsenal held on for their first Premier League win at Anfield since 2012-13, leapfrogging Manchester City while Liverpool's slide continues.
A first senior goal for Fares Ghedjemis and a stoppage-time curler from Giacomo Calò gave Frosinone a fifth straight home win, with Torino's possession counting for little against the Canarini's sharper edge.
Gustav Isaksen's equaliser and Andrea Pinamonti's late header turned a Cagliari lead into a Lazio win that put the Biancocelesti alone at the Serie A summit.
Luciano Spalletti praised his squad's second-half response in the 2-0 win over Napoli but told Football Italia the Allianz Stadium crowd must get behind the team again.
A half-time switch to 3-5-2 and two stunning long-range strikes helped Juventus beat a Napoli side reduced to ten men, ending a troubled run of results.
Junior Messias scored one and created another as Genoa beat Lecce 1-2 at Via del Mare to claim a third straight win and climb clear of the relegation zone.
After Inter's first league defeat of the season, a 3-1 loss to Milan in the derby, the coach and two senior players independently pointed to the same issue: attitude, not tactics.
Italian newspapers drew a sharp line between Ruben Amorim's settled Milan and Cristian Chivu's injury-hit selection as the Rossoneri won 3-1 in the derby della Madonnina.
Opta's pre-match numbers frame Sunday's meeting at Anfield as a collision between Arsenal's worst away ground and a Liverpool side built on defensive solidity rather than the goals this fixture used to guarantee.
Four days after Everton beat Newcastle in the EFL Cup, the same defensive flaws on both sides return to the fore in Monday's Premier League meeting at St. James' Park.