Manager Nigel Pearson will bring his players back down to Earth after the euphoria of their victory – and a place in the play-offs – at Nottingham Forest.
Assistant manager Craig Shakespeare said the players will now be focusing on Thursday night's first-leg tie against Watford at King Power Stadium
There were euphoric scenes at the City Ground after the club's first league away win over Forest for 41 years clinched a play-off spot.
But Shakespeare said: "Nigel was sombre and has made sure the players are aware, in no uncertain, terms of what is required.
"It was a very, very happy and excited dressing room after the game, but we have to bring them back down to Earth because we have to be focused on Watford now.
"We let them enjoy it because it was a great team performance at Forest, but we need to be ready for Thursday.
"I have been in the play-offs as a player and as a coach, and I always think you have to forget momentum and form, it is about dealing with the games.
"You are there. Anything can happen. It is about dealing with the game and nothing more than that."
Shakespeare said it wasn't just the 2,000 plus City fans in the ground who experienced the full spectrum of emotions during an extraordinary afternoon by the River Trent.
"You go through all the emotions as a coach when you see your side go a goal down after three minutes, and then to come back like that," he said.
"The lads responded magnificently. What an entertaining game.
"The chances we created and the game plan we had in terms of David Nugent breaking from deep, Lloyd Dyer getting at the full-back, it worked.
"Ultimately, we didn't take our chances again so you are always nervous. Emotionally, it was a rollercoaster.
"All season we have said we have that little bit of quality in our team. We told the players it was a big game and we needed a big performance from each and every one of them, and we got it."
Full-back Ritchie De Laet had to come off with a calf injury, but Shakespeare is confident he will be available for the first leg at King Power Stadium on Thursday.
"I think Ritchie will be okay," he said.
"It was a kick on the calf rather than a pull and it tightened up. He was adamant it was a penalty.
"I am sure with a few days of treatment he will be okay because it is amazing what a play-off semi-final can do to players' rehabilitation."
