A French league match between Nice and Marseille was abandoned on Sunday after home fans threw projectiles and invaded the field.
Norwich have signed French midfielder Pierre Lees-Melou from Nice for a fee of £3.5m, which could rise by a further £1m in potential add-ons.
Karim Benzema's fine run of form continued with a double as Real Madrid won at Celta Vigo to move up to second place in La Liga.
Lautaro Martinez's late winner stretched Inter's winning run to eight games, while Cristiano Ronaldo answered his critics with a perfect hat-trick.
La Liga leaders Atletico Madrid offered some hope to Real Madrid and Barcelona of getting back into the title race after they could only draw 1-1 at Levante.
Serie A leaders Milan were stunned 2-0 by Spezia to give Inter the chance to leapfrog them, while Atletico Madrid went eight points clear in La Liga.
Timothy Weah and Jonathan David both scored as Lille won 3-0 at Bordeaux on Wednesday to stay top of the French league ahead of Lyon and PSG.
Jesse Lingard's representatives have held initial discussions with Nice over a loan move for the Man Utd forward.
Real Madrid drew level with Atletico Madrid at the top of La Liga with a 2-0 win over Granada, plus all the latest from Serie A and La Liga.
Lionel Messi equalled Pele's record of 643 goals for a single club after scoring for Barcelona against Valencia in La Liga on Saturday.
AC Milan restored their five-point lead at the top of Serie A with a 2-1 win at Sampdoria on Sunday.
Patrick Vieira has been sacked as Nice head coach after two-and-a-half years in charge following a run of five straight defeats in all competitions.
Juventus were held to another 1-1 draw in Serie A on Sunday while Real Sociedad went top of La Liga with a 4-1 win against Huesca.
France forward Kylian Mbappe marked his return to action with a goal as PSG rediscovered their form with an impressive 3-0 win at Nice in Ligue 1 on Sunday.
Chelsea have made their fifth signing of the summer after completing a deal for young French defender Malang Sarr.
Patryk Klimala grabbed his first goal in Celtic colours as Neil Lennon's 10-in-a-row hopefuls earned a 1-1 draw with Nice.
Rangers clinched the Veolia Trophy after Jermain Defoe's goal sent them on their way to a 2-0 victory over Nice.
Everton's Morgan Schneiderlin is moving closer to a Goodison Park exit after passing a medical at French Ligue 1 side OGC Nice.
Barnsley's former CEO Gauthier Ganaye has distanced himself from speculation he may be returning to England to take up the same role at Charlton.
RB Leipzig lost ground in the Bundesliga title race as they drew 1-1 with Bayer Leverkusen, who led through Leon Bailey's 29th-minute strike.