Massive riots are considered the dark side via the history of football, which witnessed many unfortunate accidents, and caused many casualties, and the football used for the labyrinth was stained with the blood of many innocents.
The Mexican League disaster joined the most famous football massive riots, after the death toll of at least 17 fans reported dead, including two critically, on Saturday when fans brawled during a soccer game in central Mexico, as a result of violent clashes between the fans of Quertaro with its guest, Atlas, in the Mexican League. The match between the two teams was stopped after Quertaro fans stormed the match stadium and attacked Atlas fans, which killed at least 17 people. In the following report, we review the most prominent football stadium accidents: A Mexican soccer game descended into mayhem as violent clashes broke out between fans of opposing sides, leaving at least two people dead. 
The match, being held at a stadium in the city of Querétaro, northwest of Mexico City, was called off just after the second half had got underway following an hour of gameplay between Queretaro and Atlas, with the visitors holding a 1-0 lead.
Fans of the hated rivals were caught on camera attacking one another, including throwing chairs and hurling metal trash cans. Authorities say at least 22 people were injured, two of them critically.
Initial reports painted an even direr casualty count, claiming that up to 17 people dead and 44 injured. 

In the following report, we review the most prominent football stadium accidents:

Port Said Stadium massacre

With the final whistle blowing from the encounter between Al-Ahly and Al-Masry in the Egyptian League in 2012, the fans rushed to the stadium of the Al-Ahly fans, carrying white weapons and sticks, and they attacked the guest fans, which caused 72 deaths and hundreds of injuries.

This incident changed the shape of the Egyptian football, after which the fans did not return to the stands until now, except in separate matches and events, and caused the dismantling of the Ultras links.

Heysel stadium disaster

Bloody clashes erupted between Liverpool and Juventus fans in the stands, which resulted in the collapse of one of the stadium walls, killing 39 people, most of them fans of the Italian club, which took place in the Belgian capital Brussels in the final match of the Champions League, on May 29 of the year 1985.

The Hillsborough disaster 

On April 15, 1989, at Hillsborough Stadium in Sheffield, England, during the FA Cup semi-final match between Liverpool and Nottingham Forest, an organizational error resulted from the security men and the stadium organizers who closed the main gate to enter the stadium, causing a dangerous stampede of fans trapped between the fences of the stands and the doors The closed stadium, which led to one of the biggest disasters in English stadiums, as the number of victims reached 96 people and more than 766 injured.

Air Defense

Three years after the Port Said incident, specifically on February 8, 2015, a new incident occurred for Zamalek fans, after some fans tried to enter their team’s match against Enppi in the Egyptian League, without carrying tickets, which caused the death of 20 Zamalek fans, due to suffocation with tear gas.