Players from both teams took a knee in solidarity with the Black Lives Matter movement before Wednesday's game at Toyota Stadium in Frisco, Texas, but their gesture was overshadowed by booing from a small section of fans.
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Real Madrid dug deep in a 3-0 home win against lowly Alaves in the La Liga, but Ligue 1 leaders Paris St Germain their second Ligue 1 loss of the season.
List of major transfers in the top Premier League ahead of the 2019-20 season (all transfer fees as reported by British media):
A long-range strike from Jackie Groenen sent European Champions the Netherlands into their first women's World Cup final as they edged Sweden 1-0 after extra time in their last-four clash on Wednesday.
Four goals from Zlatan Ibrahimovic spurred Paris St Germain to their fourth successive Ligue 1 title with a 9-0 rout of Troyes, becoming the first team to win the championship after 30 matches.
Radamel Falcao answered Zlatan Ibrahimovic's early opening goal for Paris St Germain with a quick equaliser for a 1-1 draw that kept Monaco top of Ligue 1 on Sunday.
Alaba strike on Clasico debut gives Real Madrid 2-1 win at Barcelona.
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French Real Madrid striker Karim Benzema was placed under formal judicial investigation on Thursday in connection with an alleged attempt to blackmail fellow French soccer international Mathieu Valbuena using a sex video.
A summary of Thursday's matches in Europe's second tier club football tournament
Lazio won 2-0 at Legia Warsaw on Thursday to qualify for the Europa League knockout stages after a tie marred by violence when Italian fans fought with Polish police on the way to the stadium.
Manchester United took over at the top of the Premier League while Barcelona's Argentine forward Lionel Messi could be out for up to two months with a knee injury and rampant Bayern Munich extended their perfect start to seven league wins.
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IMAGES from soccer matches played across Europe on Sunday.
Barcelona lost for the second straight La Liga game in a 1-0 home reverse against Celta Vigo but there was no such trouble for Manchester City, who beat 10-man Manchester United 1-0 thanks to Sergio Aguero.
The Champions League group stages took on a less predictable look after Thursday's draw, helped by UEFA's decision to tweak the seeding system.
IMAGES from football matches played across leagues in Europe on Sunday.
Karim Benzema scored his sixth goal in four games as Real Madrid beat Alaves 3-0 on Sunday for a fourth successive La Liga victory which took the European champions to within eight points of leaders Barcelona.
Cristiano Ronaldo scored a perfect hat-trick inside 32 minutes as Juventus bounced back from their midweek Champions League exit by beating Cagliari 3-1 away in Serie A on Sunday.
Holders Chelsea made light of their off-pitch problems to reach the Champions League quarter-finals by beating Lille 2-1 away on Wednesday to complete a 4-1 aggregate victory.
Bayern Munich won the Champions League for a sixth time by beating Paris St Germain 1-0 in Sunday's final
IMAGES from the Champions League quarter-final played between Barcelona and Bayern Munich in Lisbon on Friday.
The Senegal international, 26, joined Liverpool from Southampton in 2016 for 34 million pounds ($43.8 million) and has scored 40 goals in 89 games for the Anfield club.
Images from matches played across European leagues on Saturday
News of all that's transpired on and off the football field.
Images from the football matches played across Europe on Sunday
Last season's runners-up Liverpool, big-spending French league champions Paris St Germain and Carlo Ancelotti's Napoli were thrown together in the pick of the groups while holders Real Madrid must face last season's semi-finalists AS Roma.
Lallana signs short-term Liverpool extension
Monaco's firepower was far too hot to handle for Olympique de Marseille as the Principality side moved top of the French Ligue 1 standings with a 4-0 home win on Saturday.
Bayern Munich edged past Werder Bremen 2-1 on Saturday for a Bundesliga record 13th consecutive win over them to stay three points clear at the top of the table.
Barcelona's rampant trio of Neymar, Luis Suarez and Lionel Messi all found the net at the weekend and unsung Leicester City found themselves in the record books when their England striker Jamie Vardy scored for the 11th straight game.
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Red Star, who won the European Cup in 1991 and reached the latter stages the following season, finished second in Group H behind Arsenal who crushed BATE Borisov 6-0.
News of all that's transpired on and off the football field
Check out the top footballers of the weekend...
IMAGES from the football matches played across Europe on Sunday.
A summary of Thursday's second leg quarter-final matches in the Europa League.
Lionel Messi created a goal and scored another as Barcelona came from behind to beat struggling Rayo Vallecano 3-1 at home on Saturday and stay seven points clear at the top of La Liga.
Struggling Rayo win at Valladolid after late penalty save