River Plate v Boca Juniors - Copa Libertadores final in Madrid

More from Alejandro Dominguez: "We did not betray anyone. The decision of coming here was because of what happened in the Monumental stadium. 

"In the future, everyone has to be responsible for their actions. River Plate had the chance (to play at home) and we had to make the decision that this match was going to be played and not decided in other ways. 

"Governments around South America have to make decisions and even make new laws that would guarantee that football matches and other spectacles are safe from trouble-makers. I don't see this as something that Conmebol can solve alone."

Posted at 0:58

Where to begin? Even by Argentinean football standards, this match is being played in truly bizarre circumstances.

There have been delays, controversies, a bus attack and now a new setting, 6,000 miles away on a different continent.

A few weeks ago we were all looking forward to what was supposed to be a brilliant occasion. It was the decisive second leg of South America's biggest club competition. It was between two teams who share arguably football's most intense and passionate rivalry. It was delicately poised at 2-2

Instead this second leg is being played 15 days later than was scheduled, and in Madrid, a long way from Buenos Aires, the city that owns this rivalry, both the good and the bad.

Post update

A few more points of order to mention before kick-off. River's manager Marcelo Gallardo is serving a touchline ban, so we'll not see much of him. 

There do look to be some empty seats high in the stands but I can't say for sure whether that's not a strategy to contain the sets of fans.

Conmebol president Alejandro Dominguez was speaking to BBC Sport on Saturday. 

"There were so many countries and cities that proposed to us to go and have the game played there," he said. 

"There was Miami, Medellin, Genoa, cities from Brazil, and I'm very thankful. But after all the analysis, we thought that Madrid was the city to come to. 

"There are 350,000 Argentinean people living in Spain so we wanted to give the opportunity to them to live this match and feel it. 

"And the Bernabeu Stadium is like the Mecca of football in the world."

Interestingly, because we go into this match level on aggregate and away goals don't come into play, this is essentially a one-off match at a neutral venue. Which is exactly how the final will be decided from next year. 

Although they probably won't end up playing it in Spain. Maybe it'll be Qatar instead...

More possibilities: 

We could be in for a brilliant match of actual football. Aside from the emotion and gravity of the occasion, both teams have got some very good players, too.

It's worth keeping an eye on Cristian Pavon for Boca - we was part of Argentina's World Cup squad.

River's Gonzalo Martinez also plays for Argentina and shone in the first leg - a pulsating 2-2 draw at Boca's La Bombonera (the name means The Chocolate Box).