A fantastic finale awaits in La Liga. 
Barca and Espanyol have met three times already this term, with two wins for the Blaugrana (both in the Copa del Rey) and a goalless draw in La Liga - ill-tempered matches that included a tunnel brawl at Camp Nou, two red cards for the visitors, a subsequent ban for Luis Suarez, then a pig's head and also some distasteful banners aimed at Shakira at Cornella.
Espanyol are already safe from relegation, but the city's second team are keen to deny their rivals the title - just like they did in this fixture in 2006-07.
That match saw Raul Tamudo score twice for the Pericos in a 2-2 draw which allowed Madrid back into the race and Fabio Capello's side stole the title from Barca on the final day of the season.
The former Spain striker's intervention that night (in which Lionel Messi also scored with his hand in another goal compared to Diego Maradona) became known as the "Tamudazo" and current Espanyol forward Felipe Caicedo admitted this week that he would like to produce something similar.
"Caicedazo! I like that," he said. "It sounds good. It's just another game of football, but we have the chance to do something special and historic."
For his part, however, Luis Enrique said: "I couldn't tell you when the 'Tamudazo' was and I am not interested in the slightest."
FULL STORY | Luis Enrique not worried by Espanyol aggression
Barca are currently top with 85 points, leading Atletico thanks to their superior head-to-head record in the two games against Diego Simeone's side. And if they were to finish level with Real at the end of the season, Luis Enrique's men would also win it on the head-to-head versus Los Blancos.
After Espanyol, Barca travel to Granada next Sunday and that match could provide another tough test given that the Andalusians are fighting for survival at the other end of La Liga. On paper, however, Barca are big favourites to win both of their last two games.
Atletico, meanwhile, are in action away to Levante in the penultimate round of matches. Like Espanyol, the Valencia-based side have nothing much to play for now in La Liga having already been relegated, but recent meetings have been bad-tempered and the Rojiblancos have only won five of their 13 games at the Ciutat de Valencia.
Simeone has yet to win there and Levante complicated Atleti's Liga campaign in 2013-14 by beating the Madrid side 2-0 at the end of that season. Luckily for the Colchoneros, Barca and Madrid could only draw that weekend, though, and they still went on to claim the title.
"If we don't do what we have to do, then it's impossible to look at the others," Simeone said on Saturday. "We have to concentrate on what we can achieve."
Two wins will be enough for Atletico (who are at home to Celta Vigo on the final weekend) to win La Liga only if Barca fail to win their final two matches in the Primera Division.
Meanwhile, Madrid's task is more difficult. Zinedine Zidane's side are only one off the pace, but they need both Barca and Atletico to drop points if they are to win the title - as well as making sure they triumph in their last two league matches.
Missing Gareth Bale, Keylor Navas and Dani Carvajal for the game at home to Valencia, Zidane will hope Karim Benzema and Cristiano Ronaldo are both back to full fitness for Sunday's showdown.
"It's not an easy match," Zidane said on Saturday. "Valencia are a difficult rival who play good football. Our idea is to go out and give our all. We're at home and we have to pick up the points."
Real Madrid have won their last 10 matches in La Liga, but 2-2 draws in this fixture in May all but ended the club's chances of winning the title in each of the last two seasons and Valencia always raise their game against Los Blancos due to the rivalry between the two teams. The Mestalla-based side also held Real to a 2-2 draw in what was the last game in charge for Rafa Benitez in January and won 2-1 at Camp Nou recently.
In their final league match, Madrid then travel to Riazor (a ground where they failed to win for 18 seasons between 1992 and 2010) where they will meet Deportivo La Coruna side possibly still fighting to avoid relegation.
Before that, however, the three title challengers simply have to win on Sunday in what is the first of two thrilling matchdays that will decide La Liga. Don't miss it....
- Goal