A Marco Asensio-inspired Real Madrid crushed Eibar 3-0 to close the gap on La Liga leaders Barcelona to five points on Sunday, with Karim Benzema starting on the bench.
A summary of Thursday's matches in Europe's second tier club football tournament
Ibrahimovic has not played since suffering a career-threatening knee ligament injury in United's Europa League quarter-final second leg match against Anderlecht at Old Trafford in April.
Arsenal led a list of nine clubs who grabbed a second win in as many games in the Europa League group phase as France striker Olivier Giroud scored his 100th goal for the club in a 4-2 win at BATE Borisov on Thursday.
Real Madrid suffered a shock 1-0 home defeat to Real Betis on Wednesday as an inspired performance from their former goalkeeper Antonio Adan and a stoppage-time winner from Antonio Sanabria stunned the Liga champions.
The clinical Argentine Messi now has 11 goals in his last five games in all competitions and with record signing Ousmane Dembele injured and Luis Suarez rested, he put on a sensational show at Camp Nou to extend Barcelona's La Liga lead.
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.
A summary of the results of the major European football league matches on the weekend.
Jose Callejon took advantage of Napoli's numerical advantage in the 48th minute of the playoff round second leg tie, handing them an away goal which, added to their 2-0 win from the first leg, effectively ended Nice's challenge as it left the French side needing to score four goals.
La Liga's reputation as the epicenter of world soccer talent has been bruised by the world record smashing sale of Neymar to Paris St Germain and how Barcelona react to the departure of one of their leading players will define the new season in Spain.
Liverpool striker Daniel Sturridge was substituted with a thigh injury as the English Premier League club beat Bayern Munich 3-0 in a pre-season match in Germany on Tuesday.
Chelsea agreed a deal to sign Real Madrid striker Alvaro Morata, subject to the Spain international agreeing personal terms and passing a medical.
This and more from the happenings in the world of football.
Valverde's knowledge of Barca and his many years of experience of coaching in Spain saw him pip Argentine Jorge Sampaoli and Luis Enrique's assistant Juan Carlos Unzue to the top job.
Barcelona named former Athletic Bilbao coach Ernesto Valverde on Monday as the successor to Luis Enrique and he will take charge of the La Liga runners-up on a two-year contract.
Cristiano Ronaldo scored his 400th goal for Real Madrid as Zinedine Zidane's side closed in on a first La Liga title since 2012, easing to a 4-1 win over Sevilla on Sunday while Neymar hit a hat-trick for Barcelona, who thrashed Las Palmas 4-1.
A summary of sports events and sports persons, who made news on Wednesday.
Barca must beat Villareal on the weekend if they are to stand a chance of overhauling Real in the run in.
Real are unbeaten since February, winning 10 of their last 12 games. In contrast, Barcelona have won just two of their previous five in all competitions and were dumped out of Europe in midweek.
Brazilian defender Filipe Luis scored for the second game running as Atletico Madrid beat Real Sociedad 1-0 on Tuesday to rack up a fifth straight win in La Liga and provisionally consolidate third place in the standings.
Real Madrid went five points clear at the top of La Liga after coming through a testing game at Athletic Bilbao to win 2-1 thanks to Brazilian midfield lynchpin Casemiro's strike on Saturday.
Unzue is one of the two leading candidates to succeed Luis Enrique, who announced this month he will leave at the end of this season, along with Athletic Bilbao coach Ernesto Valverde.
Real fought back after a calamitous own goal from keeper Keylor Navas gave Betis the lead in the 25th minute, just after the Costa Rican escaped a possible red card. Cristiano Ronaldo pulled the hosts level in the 41st with a diving header.
'I haven't lost any strength in the last four days and in one sense I feel a little relieved but focused on the objectives we set for ourselves at the start of the season'
Underlying tensions mean Luis Enrique will not be remembered with the same reverence as Pep Guardiola, even though he has delivered a similar trophy haul.
'I've been here 20 years and many times had the opportunity to leave. I don't have to convince you my preference has always been Arsenal'
Barcelona midfielder Rafinha has broken his nose and could miss their King's Cup semi-final second leg against Atletico Madrid on Tuesday as well as the first match of their Champions League tie with Paris St Germain on February 14.
La Liga champions Barcelona stayed on the heels of leaders Real Madrid by coasting to a 3-0 home win over Athletic Bilbao on Saturday as Lionel Messi became the club's top scorer from free kicks.
Messi stretched Barca's lead by finishing off a brilliant move with Luis Suarez in the 50th minute and the Uruguayan joined his close friend and strike partner on 15 league goals by robbing an Eibar defender and finishing inside the near post in the 68th.
Lionel Messi, Luis Suarez and Neymar were all on target as holders Barcelona beat Athletic Bilbao 3-1 on Wednesday to overturn a deficit from the first leg and advance to the quarter-finals of the King's Cup.
'I'm very happy and I can say that 2016 was the best year of my career, the trophy shows that people aren't blind and watch the games.'
Barcelona's Lionel Messi rescued a 1-1 draw at Villarreal with a sensational late free-kick on Sunday but could not prevent the champions finishing the weekend third in La Liga, five points behind leaders Real Madrid.
'We want to play football and not roulette, which is what this type of refereeing provokes. The penalty claims by Neymar and me are clear but we already know how this works'
King's Cup holders Barcelona have a fight on their hands if they are to remain in the competition after losing a fiery first leg of their last-16 tie at Athletic Club 2-1 on Thursday despite playing the final 10 minutes with a two-man advantage. Spain striker Aritz Aduriz headed Bilbao in front in the 25th minute and the veteran produced an audacious flick to tee up youngster Inaki Williams to volley in the second three minutes later. Talisman Lionel Messi pulled a full-strength Barca side back into the game with a free-kick in the 52nd minute which came off the underside of the bar and over the line.
A mesmeric Lionel Messi helped Barcelona to come from behind and beat Sevilla 2-1 in a thrilling encounter on Sunday as the champions kept the pressure on La Liga leaders Real Madrid, who saw off Leganes 3-0 thanks to a double from Gareth Bale.
Manchester United's woes deepened as stunning goals by Moussa Sow and Jeremain Lens gave Fenerbahce a 2-1 Europa League win on Thursday that left Jose Mourinho's side facing a battle to reach the knockout stages.
Cristiano Ronaldo is angry with his recent record in front of goal but not anxious about when he will find the net next, Real Madrid coach Zinedine Zidane said on Friday.
Real Madrid coach Zinedine Zidane is under pressure to break up his misfiring attacking trio of Cristiano Ronaldo, Karim Benzema and Gareth Bale when he takes the La Liga leaders to Alaves on Saturday.
Cristiano Ronaldo's teammates have issued a strong defence of his value to Real Madrid as the Portuguese striker grapples with a barren streak that has sparked a debate about his place in the team.
Alvaro Morata again proved decisive from the bench by striking a late winner against Athletic Bilbao and firing a lacklustre Real Madrid to the top of La Liga on Sunday. The Spain international has been afforded limited opportunities in his first season back at Real following two years with Juventus, struggling to usurp first choice forwards Gareth Bale, Cristiano Ronaldo and Karim Benzema. Morata has made just four league starts, but has scored four times in all competitions.