AS Roma secured their place in the Europa League last 16 with a 3-2 home win over 10-man Porto on Thursday thanks to a Paulo Dybala double, advancing 4-3 on aggregate.
Barcelona joined Real Madrid, Atletico and Real Sociedad in the semi-finals, with the draw set to take place on Wednesday.
Real Sociedad won 1-0 at Athletic Bilbao in a Basque Country derby to end its winless run and strengthen its hold on third place in the Spanish league
Striker Mariano's header was glanced onto the crossbar by Sociedad's Andoni Gorosabel while the loose ball fell to Marco Asensio, whose shot was deflected wide for a corner from which Raphael Varane header hit the top of the bar.
Everton have signed David Moyes for a second spell as their manager, the Premier League club said on Saturday.
Real Sociedad are fourth in the table on 28 points, three points behind third-placed Sevilla.
Francisco Moura's second-half strike earned hosts Porto a 1-1 draw against 10-man AS Roma in the first leg of their Europa League knockout round play-off on Thursday.
The win took second-placed Real to 62 points after 29 games, two behind champions Barca who beat Leganes 2-0 on Tuesday.
Real Madrid manager Carlo Ancelotti said that he understands the club fans booying him and his team in their 5-2 win over Celta Vigo.
A summary of Saturday's action in Ligue 1, LaLiga and Bundesliga.
Madrid's trip to San Sebastian was full of intrigue after Barca failed to beat Sevilla and the Catalan side's defender Gerard Pique said the title was now Madrid's for the taking.
Spain manager Luis de la Fuente left Barcelona's 17-year-old defender Pau Cubarsi and midfielders Marcos Llorente and Aleix Garcia out of his 26-man squad
All soccer matches scheduled to be played in the Valencian region this weekend have been postponed, the Spanish football federation (RFEF) said on Thursday due to the deadly floods which have killed at least 95 people.
Brazilian teenage striker Endrick came off the bench to score two goals in extra time and help Real Madrid rescue a hard-fought 5-2 win over Celta Vigo.
New Real Sociedad coach David Moyes faces a tough challenge to get the Basque club back on La Liga track but it is also a chance for the Scot to restore his reputation after a failed stint at Manchester United.
Barcelona rode their luck to come from behind and win 2-1 at Real Sociedad on Saturday, continuing to banish their awful record in San Sebastian and maintaining their perfect start to the La Liga season.
Real Madrid put their title defence back on track with a comfortable 3-1 win over Real Sociedad at Anoeta on Sunday, despite missing several key players. Sociedad defender Kevin Rodrigues scored at both ends and Borja Mayoral and Gareth Bale netted Madrid's other goals to help them equal the consecutive scoring record of 73 games set by Pele's Santos between 1961 and 1963.
King's Cup holders Barcelona beat Real Sociedad 1-0 in their quarter-final first leg to end a nine-and-a-half year barren spell at home of the Basque side while Atletico Madrid crushed Eibar on Thursday.
Roundup of the matches being held across major football leagues in Europe on Sunday
Cristiano Ronaldo scored a penalty and missed another as Real Madrid beat Real Sociedad 3-1.
Barcelona finally made a statement of intent in what has been a chaotic season as they came from behind to beat La Liga leaders Real Sociedad 2-1 at home on Wednesday.
Real Sociedad moved above Real Madrid into second place behind leaders Deportivo after a 3-1 win over an in-form Real Mallorca in the Spanish League.
In an early match, Norwegian side Bodo/Glimt secured a 3-2 home victory against FC Porto thanks to a brace from Jens Petter Hauge, despite going down to 10 men in the 51st minute.
Lazio, who had won all four previous games, were held to a frustrating scoreless draw by a Bulgarian side who came to defend.
A late header by Imanol Agirretxe gave Real Sociedad, who are without a coach, a 2-1 victory over 10-man Atletico Madrid in La Liga on Sunday.
Barcelona thrashed Real Betis 5-1 on Wednesday to book their spot in the Copa del Rey quarter-finals.
Former Everton and Manchester United manager David Moyes has agreed to take over as head coach of Real Sociedad until 30 June 2016, the La Liga club announced on their website
Roundup of the matches being held across major football leagues in Europe
Deportivo and Sociedad closed to within a point of first division leaders Real Madrid after securing comprehensive victories in the La Liga on Sunday.
Lionel Messi and Luis Suarez were on target as holders Barcelona thrashed Real Sociedad 5-2 to reach the King's Cup semi-finals for the seventh successive year with a 6-2 aggregate victory on Thursday.
Forward Rasmus Hojlund scored twice to allow Manchester United to come back from a goal down and get a 2-1 win at six-times Czech champions Viktoria Plzen in the Europa League on Thursday.
Atletico Madrid cruised to a 3-0 home win over Real Sociedad on Tuesday to close the gap behind La Liga leaders Barcelona to five points.
Real Sociedad coach David Moyes praised his side's determined defending after their 1-0 victory over Barcelona.
IMAGES from the Europa League matches played on Thursday
Athletic Bilbao climbed up to fifth place in the Spanish Primera Liga with an uninspiring 1-0 win at home over bottom club Espanol.
Carlos Vela helped Real Sociedad overcome a European hangover when he grabbed a second-half equaliser to earn a 1-1 draw at promoted Elche in La Liga on Saturday.
IMAGES from the Europa League matches played on Thursday
Ciro Immobile scored a 69th-minute penalty to earn hosts Lazio a 1-0 victory over 10-man Bayern Munich.
The Real Madrid midfielder has ruled himself out of the match because of an ankle injury.
The King's Cup descended into farce on Thursday when Racing Santander's players, protesting over unpaid wages, refused to challenge for the ball after their quarter-final second leg at home to Real Sociedad kicked off.