Chelsea boss Carlo Ancelotti will force his players to watch a video nasty of the Sunderland defeat when they return from international duty.
Ancelotti labelled their 3-0 defeat as the worst in his time at the club.
It was Chelsea's first defeat at home since last March, their heaviest loss at Stamford Bridge since a 3-0 defeat to Manchester United in 2002 and the worst against a non top-four side since 1995.
Chelsea, who sacked assistant Ray Wilkins in midweek, were outplayed and outfought by a Sunderland side who won comfortably with goals from Nedum Onuoha, Asamoah Gyan and Danny Welbeck.
The Blues were without injured captain John Terry and Alex in the centre of defence, and Sunderland exposed the failings of replacements Paulo Ferreira and Branislav Ivanovic with ease.
"We have to have a meeting about this on Thursday when they come back from the international break to look at what happened today," Ancelotti said.
"I think this was the worst performance since I've been here. The performance was poor today, but in football it can happen if you're not at your best and don't play with your best mentality.
"All the things were wrong. We didn't play how we wanted to, Sunderland showed fantastic spirit and played better.
"We were not able to come back into the game. It was a bad day. We were not able to play our football for 90 minutes, just 15 minutes in the first half."
Terry has been carrying a recurring back problem for 12 games, but despite his absence and that of Alex and the suspended Michael Essien, Ancelotti remains confident that his squad is strong enough.
He said: "Sometimes we've had some players out in the past, some important players, and the team's played well. Today was different. We were not able to play our football.
"I think the squad is strong enough. We maintain our position at the top of the table. We're not happy today because, above all, at home we have to play with a different mentality. I hope we come back early and in the right way."
Sunderland boss Steve Bruce was full of praise for his players for producing a result which ranks among the best of the season.
"It's not often you beat this lot 3-0 in their backyard," Bruce said. "It won't happen very often again. We really took it to them.
"The players have been fantastic over the last two weeks and I'm very proud of the performance.
"People are so frightened coming here and no one wants to get humiliated, so we thought we'd give it a go.
"But you still need the players to perform, like Welbeck, at 19, who was terrific.
"All round, they all produced a fantastic performance. I hope people talk about Sunderland rather than Chelsea's poor performance. It's not a fluke."
Bruce's side have produced an astonishing turnaround since they lost 5-1 to neighbours Newcastle a couple of weeks ago.
"I'll never get rid of it totally," Bruce added. "It's there on the CV. You're looking to try and respond and thankfully the players have done. They've rolled up their sleeves and turned it round."
