I think so. The next three matches on January, Rayo Vallecano really must show what they can do to maintain their position in top four. But it seems very difficult to see because some big clubs that will be faced. Even now they are on top four, but from the previous matches, we can see he data from what clubs they could win and made some chances to be in top four. And moreover Atletico and Barcelona will exactly try not to miss the chance to win from Rayo Vallecano in order to higher their rank of position. Moreover if Atletico can win from Rayo Vallecano in the next match, automatically Atletico will rise  up to 4th position.