Real Madrid superstar Cristiano Ronaldo put preparations for his side's match against Valencia to one side by watching Rafael Nadal take on Joao Sousa.
With just two rounds of matches left, Barcelona need two wins to hold off Champions League finalists Atletico and Real Madrid to successfully defend their title.
Real Madrid will take the applause of their home fans for one last time this season after reaching the Champions League final but the man who put them there will sit out the game with a sprained knee.
Real Madrid forward Gareth Bale has been diagnosed with a knee injury, following his side's 1-0 victory over Manchester City on Wednesday.
Real Madrid and Wales forward Gareth Bale may miss Sunday's La Liga game with Valencia after suffering a knee strain.
Paul Merson has described Manchester City's Champions League semi-final defeat at Real Madrid as the worst performance he's ever seen in football.
Diego Simeone has described this month's Champions League final at the San Siro between local rivals Real Madrid and Atletico as a '50-50' battle capable of going either way.
Real Madrid forward Gareth Bale has been ruled out of Sunday's crucial La Liga game with Valencia with a knee sprain .