Following hours of uncertainty, the game was finally postponed and re-scheduled for Sunday, 8pm GMT, with the news being announced via the stadium PA system.
The mood had initially seemed expectant and excited as thousands of River fans descended on el Monumental, while Boca fans, because of the ban on away fans in Argentina, made for their stadium, la Bombonera, eight miles away, where the game was being broadcast on a big screen.
Despite the damage done to the bus, and the injuries suffered, Conmebol was reported to be forcing the game to go ahead.
"One can't play in these conditions", CONMEBOL president Alejandro Dominguez told journalists, Reuters reported.
"In these conditions, the game was distorted".
From players being comforted to others being treated for wounds.
A number of players, including Boca's former Manchester City striker Carlos Tevez, were reportedly suffering from dizziness and vomiting and being treated by club doctors.
"I would have loved to have played this game", Juan Roman Riquelme reminisced as he reflected on the tie. Pablo has just got back with a patch over his eye and we are waiting. Fans continued to enter, and there were further clashes with police involving rubber bullets and more tear gas as chaos reigned in the streets of Buenos Aires.
A statement from Conmebol's medical commission shown on television said some players had suffered "superficial cuts" and that there was no medical reason to suspend the match.
Instead the Superclasico turned into a farce, a black mark against a nation with one of the richest sporting heritages on the planet - and one can only hope this serves as a wake-up call to tackle the problems of violence, corruption and sheer incompetence at an institutional level that combined on Saturday to bring shame to all of us that call Argentina their home.
The Boca president, Daniel Angelici, said: "We've had stones thrown at us before".
The first leg ended 2-2 at River Plate after bad conditions saw the game postponed for 24 hours.
The drama unfolded when River Plate fans attacked the Boca team coach, throwing missiles as the vehicle, smashing several windows and injuring the players inside. On that occasion, Boca were disqualified from the competition.