Boca were due to host River at La Bombonera on Saturday night in the first leg of the final of South America football’s version of the Champions League.
However, following doubts about whether the match would go ahead due to severe weather, CONMEBOL have made an announcement.
“The grand finale of the #CONMEBOLLibertadores between @BocaJrsOficial and the @CARPoficial was suspended due to heavy rains in Buenos Aires,” they wrote on Twitter.
Fans from across the planet were eagerly anticipating the showdown between Argentina’s two biggest clubs in Boca Juniors and River.
CONMEBOL have optimistically rescheduled the postponed game for Sunday, meaning supporters won’t have long to wait to see their teams in action.
“Wait another day for the grand finale #CONMEBOLLibertadores!,” CONMEBOL added on Twitter.
“And they’ll play this Sunday.”
CONMEBOL have since uploaded images of the rainy conditions in Buenos Aires with a reminder the game is off.
Earlier this week, Boca manager Guillermo Barros Schelotto talked up the upcoming clash.
“We knew we could [reach the final] from the beginning of the year and with the results we were much more convinced,” Schelotto said.
“I enjoy reaching the final, but now we are looking forward to playing in the final.
“Boca and River have positioned Argentine football in a very important place, today the world talks about this final and it is a very important achievement.”
River Plate manager Marcelo Gallardo, likewise, spoke in glowing terms when looking ahead to the Copa Libertadores final.
“To give it the real value of having achieved a very important sporting achievement, which is to play a Copa Libertadores final again, it’s not easy, and the enormous teamwork that took place throughout the year puts us in a privileged position,” Gallardo said.
“We are going to play a special, historical game, and we are privileged to be able to live it.
“We’re both favourites, then we’ll have to play the game and talk on the pitch, there’s going to be a lot of talk these days, but we have to be focused on our own, on the group, individual work and not get out of what is ours, which is what kept us strong, we do not have to change our ways.”