Barcelona and Atletico Madrid aim to refocus on the Spanish Liga this weekend after the euphoria of away wins in the Champions League round of 16 first leg.
Barca won 2-0 at Manchester City Tuesday, Atletico triumphed 1-0 at AC Milan on Wednesday.
However, both must now concentrate on keeping up with Real Madrid atop La Liga.
Barca, Real and Atletico are level with 60 points apiece, an unprecedented situation at this stage of a Spanish season.
Real will expect go top alone Saturday, if only briefly, by beating mid-table Elche at home despite being without the suspended Cristiano Ronaldo for the third and final time.
The Whites have done fairly well without the Portuguese hitman, mainly due to the sensational form and goals of youngster Jese.
Also suspended will be midfield general Luka Modric, while Sergio Ramos and Xabi Alonso might be rested by Carlo Ancelotti ahead of the Champions League trip to Schalke.
A Real win will increase the pressure on Barca and Atletico, who have difficult away games at Real Sociedad and Osasuna respectively.
"Now we have to start thinking about La Liga again. It is our main competition, our week-to-week challenge, and we cannot afford to ever forget about it," said Barca's midfield anchorman Sergio Busquets.
Barca could be without left back Jordi Alba, who pulled a muscle Tuesday but Neymar may start having fully recovered from his sprained ankle.
"Let's hope that Barca come here tired on Saturday, after their trip to England," said Sociedad's Markel Bergara.
"After all, we have done well against them here in Anoeta (Sociedad's stadium) on their recent visits. We always give them a difficult game." Barca have not won in San Sebastian since Sociedad returned to the first division in 2010 and a week ago in the cup they were held to a 1-1 draw.
Sociedad are joint sixth with Villarreal and in good form.
Meanwhile, Atletico will be without injury victims Filipe Luis, Tiago and Javier Manquillo for the Sunday clash against Osasuna. On the other hand, David Villa will be raring to go after being on the bench in Milan Wednesday.
The weekend will also see fourth-placed Athletic Bilbao visit bottom team Betis, and Villarreal against Espanyol.
