Rudiger says Spurs defeat was a hard lesson.
Chelsea's 12-game unbeaten start to the season came to an end last weekend.
Antonio Rudiger has issued a rallying cry to his Chelsea teammates after they suffered their first defeat of the campaign to Tottenham last weekend.
The Blues defender doesn’t know what exactly went wrong when they faced Mauricio Pochettino’s side at the Wembley stadium, but he’s hoping they can bounce back to winning ways in Sunday's west London derby against Fulham.
"It's difficult to tell [what went wrong] because sometimes you have one or two players that are not in good shape but it was the whole team," Rudiger told Sky Sports.
"It was a bit weird. It's hard to explain but, if you play like this, you deserve to lose.
"I can tell you know so many things but it's just excuses at the end of the day. The only thing I can say is that we have to see this as a very big and hard lesson and move on.
"We have to bounce back. It's clear. We have to show a reaction."
The Germany international continued: “We lost this game but do we need to question everything? I don't think so.
"After defeat you always have to step up. It's not the end of the world. We are now going into the end of November, December - who thought we would be unbeaten?
"Of course how we lost is very, very bad but at the end of the day it's not the end of the world. We have to look forward and keep doing what we can do best.
"Fulham is a local derby and it's very important for the fans and me. It's my first experience. I take every game seriously and try to win, especially a game like that."