Argentina powerhouse Boca Juniors have been forced to close the doors at their La Bombonera venue during an open training session ahead of Saturday's second leg of Superclasico Copa Libertadores final against arch-nemesis River Plate.
Close to 50,000 fans packed into Boca's famous home venue to see their heroes ahead of the final leg, with officials eventually cutting off stadium access to avoid overcrowding.
The first leg saw Boca come from behind twice to end 2-2 at the La Bombonera last weekend, giving River Plate a minor advantage with this weekend's decider to be played at their El Monumental stadium.