Real Madrid beat city rivals Atletico but racist chanting directed at Vinicius Jr outside the Metropolitano marred the derby.
It was an unhappy return to Munich for Barca striker Robert Lewandowski, the Bavarians' second-highest all-time scorer, who left under a cloud in the summer.
Robert Lewandowski scored a hat-trick as Barcelona opened their Champions League campaign with a comfortable 5-1 win over Viktoria Plzen at the Nou Camp.
Raphinha scored his first Barcelona goal as the Catalans beat Sevilla. Also: Real Madrid and AC Milan won but Bayern Munich had to settle for a draw.
Chelsea have agreed a deal with Inter Milan to sign Cesare Casadei, according to Sky in Italy.
New Tottenham signing Ivan Perisic speaks exclusively to Sky Sports about how Luka Modric helped with his move and jokes about his "cheap" Fantasy Premier League price.
Former Manchester United and Arsenal forward Alexis Sanchez has terminated his Inter Milan contract to become a free agent, with Marseille interested in signing him.
Romelu Lukaku is officially an Inter Milan player again after completing his season-long loan move from Chelsea, with no obligation to buy.
Martin Bengtsson discusses the depression he suffered as a teenager at Inter Milan that led to him attempting to take his own life - and the movie made about it.
Chelsea and Inter Milan have reached agreement over a loan move for striker Romelu Lukaku, according to Sky in Italy.
Inter Milan are confident they can complete a loan deal for Chelsea striker Romelu Lukaku.
Inter Milan are confident they can complete a loan deal for Chelsea striker Romelu Lukaku.
Inter Milan are in talks with Chelsea about re-signing Romelu Lukaku on loan this summer.
Tottenham are in talks with Inter Milan to sign Italy international centre-back Alessandro Bastoni, who played under Antonio Conte at the San Siro.
Romelu Lukaku wants to return to Inter Milan if the club can agree a deal with Chelsea.
Inter Milan will meet Romelu Lukaku's lawyer on Tuesday to enquire about the feasibility of a potential move back to Serie A, according to Sky in Italy.
AC Milan won the Serie A title after winning 3-0 at Sassuolo on Sunday to finish two points clear of city rivals Inter Milan, who beat Sampdoria 3-0.
Inter Milan beat Juventus 4-2 after extra-time to win the Italian Cup, while Erik Ten Hag's Ajax lifted the Dutch league title.
Inter Milan nearly threw away their Serie A title chances but came from 2-0 at home to Empoli to win 4-2 - and return to the top the table.
Inter Milan dropped points again in the Serie A title race when they were held to a 1-1 draw by Fiorentina, after Denzel Dumfries cancelled out Lucas Torreira's opener.