The Sarmiento–River match on Matchday 11 of the Argentine Professional League took a grim turn before kickoff due to an incident involving River fans as they entered the Eva Perón stadium.

Reports indicate that a clash with police involved violence and pepper spray used against the red-and-white supporters after the entry process and security operation broke down.

According to TyC reports, many River fans arrived at the last minute, while many others tried to enter without tickets. This delayed entry to the stadium, and the only available entrance for away fans was closed.

"It was the fans themselves who opened the gate to relieve the crowding outside. Meanwhile, security forces opened a narrow passage so fans could enter one at a time, while using tear gas against them and striking them with shields," the Argentine outlet reports.

The same source says the incidents were caused by ticket overselling, as Sarmiento reportedly put 3,000 tickets on sale and, due to high demand, made another 1,500 available.

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From a tactical formation and squad depth perspective, "🚨 Assault and pepper spray before Sarmiento - River" 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 Match Previews 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.

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