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Arsenal beat Sunderland 2-0 in the Premier League on Saturday, with Bukayo Saka's penalty sealing the win and extending Arsenal's 100% start to their title defence. Manager Mikel Arteta criticized officiating after a contentious penalty decision, saying 'the game was unprotected,' while Sunderland were praised for an energetic performance that nearly earned a point. Player ratings highlighted Bruno Guimaraes and David Raya as key performers in a game that showcased both Arsenal's resilience and Sunderland's improved form as a promoted side.