Chelsea defender, Antonio Rudiger has blamed himself and his teammates after their 1-0 loss to Leicester City at Stamford Bridge on Saturday.
The German defender also ruled Chelsea out of the Premier League title race.
The defender called his teammates' mentality "stupid."
A single goal from Jamie Vardy gave Leicester City their first win at Stamford Bridge in 18 years.
Maurizio Sarri's men also fell 11 points behind Premier League leaders, Liverpool.
Speaking after the final whistle, a clearly angry Rudiger ranted that the Blues can no longer think about the title.
He also revealed that the squad is lacking mental strength, calling the situation "stupid."
Rudiger told Sky Sports, "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."