Manchester City made it two wins from two at the start of the Premier League season by thrashing Bournemouth 4-0 at the Etihad Stadium on Saturday, while Manchester United plumbed new depths when they suffered a 4-0 drubbing at Brentford to sit at the bottom of the table for the first time since 1992.

The champions wasted no time getting into their stride in the sunshine as Norway striker Erling Haaland marked his home debut with an assist for Ilkay Gundogan's opener after 19 minutes.

With the first goal on the board, City cut loose and scored a sumptuous second 12 minutes later when Kevin De Bruyne curled a fine strike into the net with the outside of his foot.

Phil Foden added another before halftime from De Bruyne's assist and it was just a matter of how many more the hosts would help themselves to.

Haaland's moment in front of goal came late in the second half but he failed to connect properly with Jack Grealish's pull back.

It mattered little as a late own goal from Jefferson Lerma put the icing on the cake.

"As a team we did a really good performance," City boss Pep Guardiola said. "They defend so deep and so narrow."

United manager Erik ten Hag, however, had to apologize to the fans after his team conceded four goals in only 35 minutes at Brentford. 

"I feel really sorry for the fans. They give everything to support us and we let them down. A really poor performance. You start the game and you have to be ready, and we weren't, and that's disappointing. It's difficult for me," he added. 

Elsewhere in Europe, AC Milan began their title defense with a 4-2 win over Udinese as the new Serie A season got underway in Italy.

In Spain, Robert Lewandowski's Barcelona debut ended in a disappointing 0-0 home draw with Rayo Vallecano at Camp Nou in Barca's first La Liga game of the season.

In France, Neymar continued his outstanding run of form with a double, while Kylian Mbappe marked his return to the side with one goal as Paris Saint-Germain trounced Montpellier 5-2 in Ligue 1.

In Germany, Timo Werner found the back of the net on an emotional return to Leipzig, who played the majority of the game with 10 men, in a 2-2 draw with Cologne.

(With inputs from Reuters, AFP)