The Portuguese top-flight game between Porto and Vitoria de Guimaraes descended into chaos when a fan walked onto the pitch and attempted to kick out at two of Vitoria's players.
Mehdi Taremi had given the visitors a 1-0 lead from the penalty spot, and later missed a second penalty. However, the score became secondary when the pitch invader approached Vitoria captain Rochinha, initially holding out his arms as he walked towards the 26-year-old but then appearing to kick him.
Seconds later, he attempted to take a swing at a second Vitoria player, Geny, but the winger got out of the way in time. It was far from the first notable pitch invasion in a top league this season, with an incident at Everton v Newcastle attracting attention, but it may well worry the players who were approached without any intervention from stewards or officials.
