The Copa Libertadores match in Medellín between Independiente Medellín and CR Flamengo was officially abandoned after home fans stormed the field and set fires in the stands.Referee Jesús Valenzuela Sáez halted play after just two minutes because of the violence, leading CONMEBOL to award the win to the visiting Brazilian team by default.Club owners Raúl Giraldo and Daniel Ossa Giraldo face severe sanctions after ignoring security warnings to keep the stadium closed to the public.