It is one of the biggest games in football. A match that draws a worldwide audience and contains several of the biggest stars of the game. We are, of course, talking about El Clásico.
Los Blancos have made a surprisingly poor start to the season. After nine games they sit seventh in the table, behind the likes of Alavés and Real Valladolid.
So Sunday's clash is a must win for Real. And they certainly have the quality in their side to leave Catalonia with all three points.
Ahead of the fixture, we have analysed the two sides and created our combined XI. Several big names are left out but Leo Messi, who we know is injured and will not feature on Sunday makes the cut.