It's two weeks overdue, but the Copa Libertadores final second leg between Boca Juniors and River Plate finally gets underway in Madrid on Sunday.
After fan violence caused the originally planned match in Buenos Aires to be postponed and then relocated, thousands of travelling fans are now in Spain to watch their favourite teams go at it in the 'Superclasico.'
Thousands of fans for both sides have taken to the streets of Madrid, where there's currently a real party atmosphere before the fierce club rivalry continues in the evening.
The two most popular Argentine football clubs, both based in the capital, who have a rivalry going back over a century are meeting in the Copa Libertadores final, the most prestigious tournament in South American club football.
This particular meeting is even more tense than usual, as they have never previously met in the final of what is the South American equivalent of the Champions League.
The match is finely poised at 2-2, after the first leg which was played at the Boca Juniors stadium La Bombonera.
However the second leg, which was set to be played on November 24 at River Plate's Estadio Monumental, had to be postponed after the Boca Juniors bus was attacked en route to the stadium.
Windows were smashed, and tear gas which was used to try and repel the attackers then drifted inside the coach and affected some of the players too. Several team members had to be taken to hospital, and the rest were in no fit state to play the match.
The match was eventually rescheduled and moved to Real Madrid's Bernabeu stadium, in the hope that fewer travelling fans would mean less violence surrounding the match.
Each team had 25,000 tickets to sell, however with only 5,000 tickets to sell to people living in Argentina. So far neither managed to sell their full ticket allocation. Travelling fans are being set back around £1,800 in travel, living, and ticket costs.
Multiple arrests were made as the violence continued after the Boca bus made it to the stadium.
There are reports of a 4,000-strong security team made up of police, guards, and stewards in Madrid ensuring that the match on Sunday runs smoothly.
If River Plate wins the match, their fans will be celebrating at Puerta del Sol square, where the city normally holds its New Year's celebrations.
If Boca Juniors win, their fans will celebrate at the city's Plaza Colon, which is a mile away from where River fans will be congregating.
River Plate have won the Copa three times, most recently in 2015. Boca Juniors have won it six times before, and are seeking their seventh win, which would tie them with Independiente as the competition's most successful club. However, the last time they won a continental trophy was back in 2007.
So far, the crowds gathered in Madrid have remained peaceful, with swathes of blue and yellow for the Boca supporters and red and white for the River Plate supporters.
Fans are chanting, banging drums, and generally having a good time as they prepare for the huge match on Sunday night. Hundreds of Boca Juniors fans gathered outside the team hotel on Saturday night chanting 'it doesn't matter where you play, we will always follow you.'
Although it is all friendly for now, security forces are said to be on high alert, as a group of 400 to 500 violent fans are expected to be in Madrid.
To show just how fierce the rivalry between the two clubs is, the number of security personnel is nearly double that which is normally used for matches between Real Madrid and Barcelona.
