Borussia Dortmund stayed top of the Bundesliga by beating Augsburg 4-3, while titleholders Bayern Munich were thumped 3-0 at home by Borussia Moenchengladbach.
Leaders Bayern Munich eased past VfB Stuttgart 2-0 on Saturday to grab their first win of the year, as did Borussia Dortmund who beat Freiburg 3-0 to climb off the bottom of the Bundesliga table.
Bayern Munich's party was wrecked by Borussia Moenchengladbach who hit back for a 1-1 draw at the Allianz Arena on Saturday, forcing the Bavarians to wait at least a week to clinch a fourth straight Bundesliga title.
Manchester City's quadruple bid remained intact as Ilkay Gundogan and Kevin de Bruyne secured a 2-0 win at Everton in their FA Cup quarter-final clash
News of all that's transpired on and off the football field
Injury-ravaged Bayern Munich beat Hoffenheim 2-0 on Saturday, shrugging off a string of absences and their midweek Champions League defeat at Porto to close in on the Bundesliga title.
In-form Borussia Moenchengladbach struck three times in 14 minutes in the second half to floor champions Bayern Munich 3-1 on Saturday and inflict their first Bundesliga defeat of the season.
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.
Napoli rediscovered their scoring touch as they brushed aside Inter Milan 3-0 on Friday, sending their opponents' new coach Stefano Pioli back to the drawing-board.
Two late goals by Everton substitutes brought the Merseysiders a third successive win when they beat Crystal Palace 2-0 at Goodison Park in Sunday's only Premier League game.
Hoffenheim ended champions Bayern Munich's 19-game winning streak in the Bundesliga on Saturday with a 3-3 draw after first taking the lead and then fighting back from two goals down.
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Chelsea manager Jose Mourinho, who said he made "11 mistakes" in his team selection after Chelsea lost to Newcastle United on Saturday, will not want to get it wrong again when Schalke 04 visit StamfordBridge in the Champions League on Wednesday.
Barcelona's lead at the top of La Liga was cut after a second consecutive defeat and LeicesterCity's improbable march towards the Premier League title showed no sign of slowing as they won a fifth straight match. Juventus stayed six points clear of Napoli after Italy's top two both won and Bayern Munich extended their Bundesliga lead to seven points. Here is a summary of results from football matches played across Europe over the weekend.
News of all that's transpired on and off the football field
Images from the soccer matches played across Europe on Saturday.
Last season's Bundesliga top scorer Robert Lewandowski scored his first competitive goal for new club Bayern Munich but the champions had to settle for a 1-1 draw at Schalke 04 on Saturday.
World No 1 Novak Djokovic maintained his perfect tournament record and advanced to his fifth China Open final with a 6-3, 6-4 victory against Andy Murray on Saturday.
United are 16th in the standings with a game in hand heading into the international break.
Giacomo Bonaventura's free kick earned Milan a 1-0 win over Pescara to move them into the top three of Serie A on Sunday.
Bayern Munich, already crowned Bundesliga champions last week, lifted the league trophy in an empty stadium on Saturday after crushing hosts VfL Wolfsburg 4-0 on the final matchday. Bayern can win more silverware next week with the German Cup final against Bayer Leverkusen. They are also still in the Champions League.
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.
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Bundesliga leaders Bayern Munich survived several first-half scares in a 1-1 home draw with midtable Schalke 04 on Saturday as Philipp Lahm made his 500th appearance for the Bavarian club.
A round-up of Saturday's action in Serie A, La Liga and Bundesliga.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
News of all that transpired on and off the field.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field
Borussia Dortmund steam-rollered hapless Freiburg 5-0 while Bayern Munich plodded past VfL Wolfsburg 1-0 as the two unbeaten arch-rivals remained level on points at the top of the Bundesliga on Saturday.
Juventus progressed to the Champions League last 16 after a Cristiano Ronaldo goal and a late header from substitute Alvaro Morata gave them a comeback 2-1 home win over Hungarians Ferencvaros on Tuesday.
Cristiano Ronaldo finally became the highest scorer in Real Madrid's history while Bayern Munich set a record for the greatest number of successive wins at the start of a season in the Bundesliga this weekend.
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Atletico Madrid demonstrated their remarkable team spirit to come roaring back from two goals and a man down to draw 2-2 at Liga debutants Girona on Saturday, after Antoine Griezmann had been sent off for the first time in his career.
Inter will be his sixth club in a career which began when he made his debut for Anderlecht as a 16-year-old and has taken him to Chelsea, West Bromwich Albion and Everton.
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Zlatan Ibrahimovic bagging four goals, while Juventus and Bayern Munich preserved their leads and FA Cup holders Arsenal were dumped out of the competition.
News of all that's transpired on and off the football field
News of all that's transpired on and off the football field