Chelsea's bid to win the Premier League took a huge blow as they were shocked by Leicester City on Saturday afternoon.
Given Leicester's struggles in recent weeks, the west London side went into the game as the heavy favourites.
And they should have taken the lead when Eden Hazard found himself one-on-one with Kasper Schmeichel, but he could only send his effort crashing off the bar.
And they were made to pay shortly after, with Jamie Vardy giving the away side an unlikely lead.
Marcos Alonso had a golden opportunity in stoppage time to ensure Chelsea came away with a draw, but he could only send his effort off the post.
It really was a disappointing loss for Maurizio Sarri's men.
They now find themselves in fourth; 11 points behind Liverpool in the race for the title.
They will have it all to do if they want to win their sixth Premier League title.
And, according to Antonio Rudiger, the result was a 'disaster' and Chelsea can 'only talk' about a top four finish from now.
Per Gary Taphouse of Sky Sports, the German defender said: "It's a disaster. We don't talk about the title any more.
"If we can't win these games, we can't compete. We only talk now about top four. Maybe it's a lack of mentality. Stupid."
Fair play to him for speaking so honestly.
It's certainly refreshing to see a footballer speak their mind rather than giving neutral answers to the media.
Sarri also confirmed that Chelsea cannot win the league, saying it was 'impossible' from the start given the quality of Liverpool and Manchester City.
When asked if his side could still win the title, Sarri said, per the Metro: "It was impossible from the beginning of the season.
"As I said at the beginning of the Premier League it is impossible to catch Liverpool and Man City, we have to be careful to stay close to the first four positions."
Chelsea will be looking to bounce back when they travel to Watford on Boxing Day.