Thomas Tuchel laid into his players as they were ripped apart by a brilliant Arsenal display.
The Blues was clearly frustrated by the poor performance of his men and read them the riot act during a drinks break midway through the first half.
The chastening defeat, puncturing the optimism following their takeover, was watched by new co-owners Todd Boehly and Hansjorg Wyss and will heighten their urgency to bring in new signings ahead of the new season.
