The goal ended a chance for Basel to win the Swiss Super League for a third time in a row.
Basel were in the lead, three points ahead, and had a home fixture in the sold out St. Jakob-Park against their sole remaining rivals for the title Zürich.
Thirty seconds after the final whistle, dozens of Basel supporters stormed the pitch and started attacking Zürich players and officials who then tried to flee into the changing rooms.
On the other end of the stadium the small group of 500 Zürich supporters who had travelled to the match started celebrating with their players.
The police built a human wall near the center line to prevent the Basel hooligans from advancing any further.
The clashes did not end after the match: further battles were held between hooligans and police outside the stadium and lasted until late into the night.
[7][8][9] FC Zürich were also sanctioned because of their inability to prevent their fans setting foot on the field, leading to a fine of 30,000 Swiss Francs.
Notably, the cantons of Basel-Stadt and Basel-Landschaft, where most FC Basel supporters reside, have refused to become signatories to the agreement.