Fox Sports reports that Boca Juniors opened its training ground to Mexican club Tigres UANL ahead of the second-leg of the Copa Libertadores final on Wednesday night. The gesture, of course,is rooted in Boca’s deep hatred for River Plate, the Liga MX club’s Buenos Aires-based opponent. Tigres could become the first Mexican club to win South America’s top clubcompetition with a win at River’s Estadio Monumental, as the first-leg finished 0-0 in Monterrey.