Barcelona have opened a four-point lead at the top of the LaLiga table, following a 3-1 victory over Atletico Madrid on Tuesday night.
Hansi Flickās men had to come from a goal down to take all three points at the Nou Camp.
Atletico arrived on the back on a seven-match winning run and took the lead through Alex Baena in the first half.
But the champions were levelled very quickly, thanks to Raphinhaās goal.
Robert Lewandowski missed the chance to score from the penalty spot, as Barcelona began to grown into the game.
After the break, Dani Olmo and substitute Ferran Torres found the back of the net, to secure a hard-fought victory for Barcelona.
Real Madrid travel to Athletico Bilbao on Wednesday night and can narrow the gap back to one point if they win.