One player sent off, two goals conceded, three substitutions and the recurrence of a groin injury for Cole Palmer.
Chelsea unravelled in the first half at Old Trafford, setting the platform for a 2-1 defeat by Manchester United.
Blues boss Enzo Maresca admitted his gameplan went "in the bin" after just four minutes when goalkeeper Robert Sanchez was dismissed for bringing down Bryan Mbeumo.
That led to an early reshuffle with Maresca making two substitutions, before Bruno Fernandes fired United in front after 14 minutes.
Defender Trevoh Chalobah called the start the "worst 15 minutes" Chelsea have played this season.
It was to get even worse for Maresca's side with talisman Palmer forced off in the 21st minute.
The chaotic first half was the first in Premier League history to feature two or more goals, two red cards and three substitutions, after Casemiro - who had doubled the hosts' lead - was also dismissed.
Chalobah pulled a goal back after the break and the Blues threatened to equalise late on, but were left rueing their first-half display.