Football fans were shocked on Wednesday evening, as the second leg of Manchester City's Champions League quarter-final against Atletico Madrid descended into chaos.
Police were forced to separate the two teams at the Wanda Metropolitano Stadium after an ill-tempered game and disgraceful brawl in the tunnel. City progressed thanks to a 1-0 aggregate win and will play Atletico's local rivals Real Madrid in the last four.
Here, Mirror Football gives an overview of what happened in the Spanish capital on Wednesday evening and why the tense tie finished with police separating Atletico's finest talents and various England stars, including Kyle Walker and Jack Grealish.