Barcelona and Atletico Madrid meet for the sixth time this season on Saturday in a meeting that will decide the La Liga title.
Atletico lead Barca by three points with one game to go, but the Catalans will take the title on home soil at the Camp Nou with victory thanks to a better head-to-head record.
Here, AFP sports looks at their five previous encounters this season:
Atletico Madrid 1 Barcelona 1 (Spanish Supercup, August 21)
In what was to become a pattern of the meetings between the sides, Atletico burst out of the traps in their first home game of the season and went ahead after just 12 minutes thanks to David Villa's strike against his old club.
Despite losing Lionel Messi to injury, Barca slowly regained control after half-time and got the vital away goal in the tie when Neymar headed home his first goal for the club 24 minutes from time.
Barcelona 0 Atletico Madrid 0 (Spanish Supercup, August 28)
Barca took the first silverware of the season on away goals, but were thankful to two incredible saves from Victor Valdes as he denied Arda Turan and Villa either side of half-time.
The hosts should even have sealed victory on the night a minute from time when Miranda upended Pedro in the box, but Messi struck the resulting penalty against the bar.
Atletico Madrid 0 Barcelona 0 (La Liga, January 11)
Both sides had dropped just five points in 18 league games heading into their new year clash and both were happy to settle for a point from a cagey affair at the Vicente Calderon.
Neymar and Messi started on the bench for the visitors on their return from injuries, but even the South American duo failed to open up Atletico's rock solid defence as second-half substitutes.
Barcelona 1 Atletico Madrid 1 (Champions League quarter-final, first leg, April 1)
Even Barca's best performance against Atletico this season failed to reap a victory as the scores ended level for the fourth straight meeting.
Both teams suffered early injury blows as Gerard Pique and Diego Costa limped off, but it was Atletico who went in front in spectacular fashion just after half-time when Costa's replacement Diego Ribas fired into the top corner from 30 yards.
Barca responded through Neymar 15 minutes later, however, despite wave upon wave of Catalan attack towards the Atletico goal they couldn't find a winner as Thibaut Courtois made fine saves to deny Andres Iniesta and Messi.
Atletico Madrid 1 Barcelona 0 (Champions League quarter-final, second leg, April 9)
The deadlock in the series was finally broken as Koke's early volley was enough to hand Los Rojiblancos a deserved victory and eliminate Barca from the Champions League before the semi-finals for the first time in seven years.
The scoreline could have been even more favourable to the hosts as they also hit the woodwork through Adrian Lopez and Villa.
Neymar was again the biggest threat for Barca as an out of sorts Messi saw his scoreless streak against Atletico stretch to seven games.