Paraguay beat Venezuela 5-3 in a penalty shootout to reach the final of the Copa America for the first time since 1979 after a fortunate goalless draw but the match will be best remembered by neutrals for an ugly fight that broke out amongst the teams as they left the field.
The post-match fight, involving players and coaching staff from both teams, lasted for several minutes and could lead to further suspensions for Paraguay.
Police had to escort the players and coaches from the field to protect them from objects thrown from the crowd.
The result was harsh on Venezuela, who will feel desperately unlucky they did not win the match before the shootout. They hit the woodwork three times and dominated the later stages against Paraguay, who had midfielder Jonathan Santana sent off in the first period of extra time.
The Paraguayans then took advantage of their good fortune to convert all five of their penalties in the shootout with their goalkeeper Justo Villar saving Franklin Lucena's weak effort to set up the win.
The result meant that Paraguay reached the final of South America's most prestigious tournament without winning a single match in open play having drawn three group matches before beating Brazil on penalties after a goalless draw.
It also brought a halt to Venezuela's remarkable Copa America. Long regarded as the weakest side on the continent, they had never before reached the semi-finals. They will now face Peru in La Plata on Saturday in the third-place playoff.
Paraguay will look forward to their first appearance where they will meet Uruguay but they will be anxious to see if their plans for Sunday's final will be disrupted by disciplinary action.
Find some images of the ugly post-match scenes below.