The conditions are not right for the final match.
South America's biggest game in club football has been called off again in Argentina - a day after violence forced the match to be postponed.
Boca's request for the latest postponement centred on a desire for the showpiece continental decider to be played "under equal conditions" following the "acts of violence" that were witnessed on Sunday. However, city government yesterday ordered River Plate's stadium closed for exceeding capacity limits and failing to keep exits clear, casting doubt on whether the second leg will go ahead.
The decisive leg had been set to be played on Saturday but was suspended until Sunday after Boca players were injured when their bus was attacked by River fans outside their Monumental stadium in Buenos Aires.
Argentina has a problem with football-related violence and more than 300 people have been killed over the last 50 years because of it, according to one charity.More news: Son hits wonder goal as Spurs thrash unbeaten Chelsea
The first leg at Boca's ground on Nov 11 ended 2-2 and the second leg was taking place at River's home in front of their own fans.
"We want immediate action from the authorities and will help to identify, capture and prosecute those responsible".
Around 20 minutes before the scheduled kick-off time, CONMEBOL announced that the start had been officially moved back an hour to 18:00 due to the attack. The decision has been taken.
Indeed, the victor of the Copa Libertadores is due to play in the Club World Cup on December 18, meaning that, should the game not be cancelled completely and a victory awarded to Boca, there is a three-week window in which to get the game played. I will speak to both presidents.
This is the only sure question, that the game will be played, especially seeing that there will need to be a victor to participate in the Club World Cup in Abu Dhabi.
CONMEBOL has also confirmed a new date for the game will be decided at a meeting between the Boca and River presidents on Tuesday.