River Plate beat bitter Buenos Aires rivals Boca Juniors in the final of the Copa Libertadores. The historic game was played in Madrid after violence prevented the second leg from being played in Argentina.River Plate 3-1 Boca Juniors (5-3 agg.), Santiago Bernabeu (Pratto 68', Quintero 109', Martinez 120'+2 — Benedetto 44') River Plate came from …