A video on social media shows how the altercation between Manchester City and Atletico Madrid players started after their Champions League quarter-final second leg at the Wanda Metropolitano.
In a badly-tempered game, which had already seen a big coming together between both sets of players following a red-card challenge by Atletico defender Felipe, it was then reported that the players were fighting in the tunnel with police involved.
BT Sport suggested that City substitute Jack Grealish and Atletico defender Stefan Savic were involved, with footage from the tunnel later showing the pair arguing, but not clashing, and then some more altercations involving Sime Vrsaljko. Now, a video taken from the stands shows how the disruption began just outside the entrance to the tunnel.