Napoli are off to their worst start to a season in 17 years under Massimiliano Allegri, and tensions are reportedly simmering in the dressing room.

According to Tuttosport , Tuesday’s 3-1 defeat at Villarreal left Napoli with four losses from their first eight competitive games, alongside three wins and a draw. Only Roberto Donadoni’s side in 2009-10, who lost four of their first seven, have started worse, and Allegri’s men are yet to win two games in a row.

The defeat in Spain also brought spats on the pitch and visible frustration between teammates.

VILLARREAL, SPAIN – OCTOBER 13: Luiz Junior of Villarreal CF gets to the ball before Rasmus Hojlund of SSC Napoli during the UEFA Champions League 2026/27 League Phase MD2 match between Villarreal CF and SSC Napoli at Estadio de la Ceramica on October 13, 2026 in Villarreal, Spain. (Photo by David Ramos/Getty Images)

In Europe, the picture is even bleaker. Napoli have made their worst Champions League start in club history, with no points and just one goal. Their strikers have scored only five of the team’s 11 goals in all competitions, a poor return on roughly €200m spent on the attack.

Allegri’s own European record is under scrutiny too. He has lost eight of his last nine Champions League matches, and his last win came in October 2022.

Tuttosport estimates Napoli need at least 11 points from their remaining six league-phase games to reach the top 24, starting with Bodø/Glimt.

First comes Saturday’s trip to bottom side Venezia, where Kevin De Bruyne is expected to start on the bench after playing every minute of the last two games.

From a tactical formation and squad depth perspective, "Allegri’s Napoli suffer worst start in 17 years as tensions rise" carries substantial tournament implications for international seeding and domestic campaign momentum. Coaching staffs are heavily weighing high-pressing efficiency (PPDA), defensive transition pace, and fixture fatigue management.

Tactical analysts monitoring Locker Room News metrics emphasize that squad adaptability and set-piece execution will likely dictate outcomes in high-leverage knockout environments. Real-time match telemetry and tracking data continue to inform managerial decision-making.

Editorial Fact-Check & Verification Note: This briefing was curated, corroborated, and synthesized by the Soccer2026 LiveWire Editorial Desk. Readers following "Allegri’s Napoli suffer worst start in 17 years as tensions rise" are encouraged to review the full primary source coverage linked below for complete historical context, direct quotes, and official statements.