.... I'm not a forensic expert, but I think the guy on the far right of the picture is getting ready for a healthy dose of some soccer cleats to the midsection. This is South American Cup Final aftermath. Watch the video as it is a good example of the mob mentality. Near the end of the video, everything seems to be calmed down until the Penarol player (in the picture) does his best Jackie Chan impression.
But even more interesting is watch the crowd literally start hopping and swarming like somebody kicked over a fire ant nest. Classic.