COPA LIBERTADORESMadrid police chief admits difficulty in hosting Libertadores finalPolice in Madrid have been briefed on how to control Boca Junior and River Plate fans ahead of the Copa Libertadores final match set to take place at the Santiago Bernabeu on SundayAStvUpdate: Dec 8th, 2018 08:27 ESTSpanish police officers walk outside Santiago Bernabeu stadium ahead of the Copa Libertadores final in Madrid, Spain December 8, 2018. REUTERS/Javier BarbanchoJAVIER BARBANCHOREUTERSTagged in:River PlateBoca JuniorsTeamsMadridMadrid Autonomous CommunitySpainCopa Libertadores 2018Copa LibertadoresFootballCompetitionsSports