The difference in points with Real Madrid is not that important because Real Madrid can probably get full points against Celta Vigo at Santiago Bernabeu.
Still regarding Barcelona, what needs to be paid attention to is not Real Madrid but Girona. If Girona is able to secure points in the match against Osasuna, then Barcelona will return to third place even though they are currently still in second place.

Atletico Madrid is currently stuck in defeat against Cadiz. The second round of the match is starting. If they are unable to win against Cadiz, Atletico Madrid will have an even harder time getting into third place.
From the game being played, the opportunity to get points in this match is still open.