Defender Michael Keane says Saturday's big local derby at Pride Park has become a 'must-win' game for Leicester City.
There is now far more than local pride at stake for City when they face Nigel Clough's Derby in tomorrow's live TV tea-time kick-off.
A run of one win in eight league games has seen their focus switch from chasing an automatic promotion spot to staying in the play-off frame.
After Tuesday's disappointment when City squandered two points by conceding an equaliser in the fourth minute of added-time at Cardiff, Keane said it was vital to take all the points from the Rams clash.
"We treat every game as a massive game but this one, more than others, is becoming a must-win game," he said.
"It is a massive game, not just for the fans. We will definitely be going out for the three points and to play like we did at Cardiff – and keep the back door shut.
"I thought we played brilliantly throughout the game on Tuesday and coped with their threat superbly.
"We managed to get the goal which we thoroughly deserved, but that goal in the last minute left us so gutted and put a real downer on the day.
"We deserved more but we have to move on and we have put that behind us now. We need a win on Saturday.
"We are expecting a really tough game and we know they work really hard, even more so on Saturday because it is a local derby.
"Hopefully we can outwork them, play our good football and come out with a win."
The tall centre-back has scored three of City's last seven goals and he admits he feels confident going up for every set-piece now.
"I have popped up with a few lately, which is good, and hopefully I can keep popping up in the box and get a few more chances," said Keane, who was talking after attending a Give Racism the Red Card event at the King Power Stadium. Keane and team-mates Jamie Vardy and Jeff Schlupp answered questions from schoolchildren about the fight to banish racism from football.