Maurizio Sarri will show his Chelsea players a video nasty of their defeat to Leicester in a bid to eradicate a creeping error count.
Chelsea lost 1-0 to Leicester in Saturday's Premier League clash at Stamford Bridge, leaving the fourth-placed Blues 11 points behind leaders Liverpool.
Jamie Vardy's neat finish sealed victory in a match where Eden Hazard struck the bar and Marcos Alonso a post.
Now Chelsea take on Watford at Vicarage Road on Boxing Day, with manager Sarri wholly uninterested in any Christmas cheer.
"Of course, we will prepare a video about the match," said Sarri.
"For every match we prepare a video after the match. We will prepare individual videos, the individual mistakes.
"I want to speak with the group first of all, then I want to speak with three, four, five players. I don't know how many at the moment.
"Of course we have to do everything just in order to avoid the same problem in the future."
Asked if he had even less interest in Christmas now than before the Leicester defeat, Sarri added: "Yes. Of course, now I am interested in the 26th, not the 25th."
An honest assessment from @ToniRuediger...https://t.co/CONCTLkYtG — Chelsea FC (@ChelseaFC) December 23, 2018
Sarri believes Chelsea failed to produce the right reaction after slipping behind against Leicester, and insisted sharpening up is all the Blues should focus on ahead of facing Watford.
Alvaro Morata should boost Chelsea's forward line at Watford, with Sarri expecting the Spain hitman back from knee trouble.
"In this moment we have to think about us; only about our team," said Sarri.
"The (Watford) match is difficult, we know very well. We have to study very well these kinds of opponents.
'We hit the woodwork twice, their goalkeeper made some great saves, we were unlucky, but I keep the positives in our heads and now we move forward and try to win game after game.' 👊 @hazardeden10 https://t.co/yXm4a3RwaO — Chelsea FC (@ChelseaFC) December 23, 2018
"I think now the most important thing is our reaction after the match.
"In the match the reaction was not in the right way.
"Now we have to think about the reaction after the match, just in order to prepare in the right way the next match."
Asked if Morata would be ready to face Watford, Sarri added: "I think so, I think he will be able to play."
ga('create', 'UA-72310761-1', 'auto', {'name': 'pacontentapi'});
ga('pacontentapi.set', 'referrer', location.origin);
ga('pacontentapi.set', 'dimension1', 'By Nick Purewal, Press Association Sport');
ga('pacontentapi.set', 'dimension2', '1de76009-50fc-4b83-bc3e-58f9e2cb451e');
ga('pacontentapi.set', 'dimension3', 'paservice:sport,paservice:sport:club-news,paservice:sport:football,paservice:sport:uk,paservice:sport:world');
ga('pacontentapi.set', 'dimension6', 'story');
ga('pacontentapi.set', 'dimension7', 'composite');
ga('pacontentapi.set', 'dimension8', null);
ga('pacontentapi.set', 'dimension9', 'sport:football');
ga('pacontentapi.send', 'pageview', { 'location': location.href, 'page': (location.pathname + location.search + location.hash), 'title': 'Sarri preparing video nasty in bid to reduce Chelsea errors'});
