Mikel Arteta commended Arsenal's increasing maturity following their impressive victory over Paris Saint-Germain, a win that marked a strong start to their Champions League campaign. The Gunners took control of the match with a header from Kai Havertz and a well-placed free-kick from Bukayo Saka, who served as stand-in captain for the game. This victory was further highlighted by the debut of summer signing Mikel Merino, who returned to action after recovering from a shoulder injury. Arteta expressed pride in his team's performance, emphasizing their ability to compete against one of the best teams in the world.