The rescheduled second leg of the Copa Libertadores soccer final between River Plate and Boca Juniors was postponed again on Sunday hours before it was due to start, organizers said, after Boca complained the match could not be played under conditions that were fair for both teams.

The decisive leg was scheduled 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.

"We don't want there to be any excuses that conditions were not equal for both teams," said Alejandro Dominguez, the president of the South American soccer confederation CONMEBOL said on TV. "We want both teams to have time to recover."