And Alexis Sanchez struck late on to add gloss to Arsenal's victory at the Liberty Stadium. Swansea dropped to the foot of the table following their defeat after fellow strugglers Hull City downed Bournemouth on the same day.
With Man City on the attack, the ball appeared to have hit the hand of the right-back inthe Liverpool area. The incident led to huge protests from City players.
Erling Haaland opened the scoring very early inthe game from the penalty spot, after Jack Grealish was fouled inthe box. Although Carlos Vinicius levelled matters inthe first half, Julian Alvarez struck a stunning winner from range.
Arsenal, on Friday, became the biggest spenders inthe Premier League this summer so far. This follows the £32 million signing of Oleksandr Zinchenko from Manchester City.
Phil Foden doubled their lead in first-half stoppage time after a graceful run before Haaland struck from 25 yards six minutes into the second period to seal City's fourth victory from four in their Champions League defence.
Sergio Aguero struck twice to take his career goal tally to 400, while Raheem Sterling was also on target with his fifth goal inthe opening three Premier League games.
Andre Gomes should have levelled but struckthe bar when in space, and Gundogan slammed in his fourth goal in two games to seal City's first ever competitive win over Barca.
City's hierarchy believe that a deal inthe region of £30m could be struck, although reports suggest the two clubs are still afar off inthe player's valuation.
The bomber struck as more than 100 grievers, mostly lawyers and journalists, crowded into the emergency department to accompany the body of a prominent lawyer, who had been shot and killed inthecity earlier inthe day.
There is something about these guys I so much love and I think it is fair to say the two of them are lovestruck. After all, it's been close to two months since they've been stuck inthe house, so truly, anything is possible.
Inthe Catalan's first season, Sterling managed just 10 goals. But the 24-year-old bagged 23 inthe 2017-18 campaign, 25 last season and 14 so far in this one.
The song is titled - 'Outta My Head', and its about a love-struck couple that tries to keep their love alive inthe midst of their relationship rainstorm.
Videos on social media show black smoke rising from a building inthecity centre following the sound of the blast, with eyewitness claiming some "missile attacks" were "struck down" by Ukrainian forces.