Atletico stay top of La Liga by two points
Barcelona in second place
Real can move top with on Sunday
Barcelona v Atletico Madrid (15:15 BST)
Barcelona trailed Atletico by 13 points in January.
Now they face Diego Simeone's men knowing victory would send them top for the first time this season.
Some change in fortune, for both sides.
Barcelona v Atletico Madrid (15:15 BST)
It's third versus first today as Barcelona welcome leaders Atletico Madrid, while second plays fourth on Sunday as Real Madrid face Sevilla.
Atletico can move five points clear of Real and Barca with victory today, while a Barca win would take Ronald Koeman's men top and leave the door open for Real to move into pole position on Sunday due to their superior head-to-head record.
Sevilla certainly aren't out of the picture yet, at six points behind Atletico.
Image source, .Barcelona v Atletico Madrid (15:15 BST)
Can Atletico Madrid see it out?
Image source, Getty ImagesOr will Barcelona knock them off their perch this afternoon?
Image source, Getty ImagesThe defending champions will be waiting to capitalise tomorrow...
Image source, Getty Images.... while Sevilla could also bring themselves right back into contention.
Image source, Getty ImagesIt is a simply HUGE weekend in La Liga, as the top four go head-to-head to determine who will be left standing in the title race with just three games to go.
Welcome all.