The last time the London side retained the top-flight title was in 1935 but it took just 15 minutes for Kai Havertz to show Arsenal's intent as he coolly guided a Riccardo Calafiori cross into the bottom corner of the net from the edge of the box.

Manchester United lost to Arsenal in their opener on Sunday but Ruben Amorim remained full of optimism and said his rebuilt team can now beat anybody in the Premier League as the club try to put last season's woeful 15th-place finish behind them.

Arsenal's Riccardo Calafiori headed home an early corner, aided by a weak challenge from goalkeeper Altay Bayindir, to earn a 1-0 victory at Manchester United in the Premier League on Sunday, spoiling the hosts' season opener.