Leicester City goalkeeper and captain Kasper Schmeichel believes they must improve very soon.
The Foxes lost 1-0 to Rennes in the Europa Conference League, but went through 2-1 on aggregate.
Even though his side are through to the next stage, Schmeichel knows if they do not improve, they will not go much further.
"It was no fun. It was stressful but we knew what we were coming in for," Schmeichel said post-game to BT Sport.
"We didn't play our best, that's safe to say, but we showed resilience and dug in. Great feeling, great day but still very, very tough.
"As a keeper you try and get yourself into a shape where you're covering as much of the goal as you can. You need it to hit you and luckily it did.
"These are the nights that we want. Great credit to the Rennes fans as well, they were fantastic. Our fans as well, we weren't allowed that many of them in but we could hear them. These European nights are special and that's why we want more of them.
"Very, very proud. But we know if it's a competition we want to progress further in, we'll have to play better than we did today. We know there's a lot to improve on."
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