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Group 1: Chelsea vs Liverpool Match Summary - Chelsea defeated Liverpool 2-1, marking Liverpool's third consecutive loss in all competitions [2][4] - Chelsea's goals were scored by Caicedo and 18-year-old Estewan, who became the youngest Brazilian to score a winning goal in the Premier League [4][5] - Liverpool's equalizer came from Gakpo, but they were unable to secure a point [4][5] Group 2: Other Matches and Performances - Arsenal won 2-0 against West Ham, maintaining their unbeaten streak and leading the Premier League with 16 points [2] - Real Madrid triumphed 3-1 over Villarreal, with Mbappe scoring before being substituted due to a minor ankle injury [8][9] - Bayern Munich continued their perfect start to the season with a 3-0 victory over Frankfurt, leading the Bundesliga with 4 points [11][12] - Inter Milan achieved a 4-1 victory against Cremonese, marking their third consecutive win and moving them up to fourth in Serie A [14] - Manchester United secured a 2-0 win against Sunderland, with manager Amorim celebrating his 50th match in charge [16][17]