City boss Rob Kelly said his side had a 'bad day at the office' following their 2-1 defeat at the hands of Sheffield Wednesday at Hillsborough. The Foxes went into the game on the back of an unbeaten run in the league that stretched back to the end of September - and included a 2-1 victory over in-form Stoke City on Tuesday night.
But that run would come to an end against the Owls - with two goals from former Derby County striker Marcus Tudgay doing the damage on the day.
Kelly said: "We didn't perform to the levels that we know we can today.
"We just couldn't get it going in the first half and we were probably quite fortunate to go in at the break just 1-0 down.
"I felt that we got better in the second half. We never lay down - even after their second goal had gone in.
"We had a go late on, but the level of performance that we have been achieving over the last seven or eight games was not evident.
"You have got to look for reasons. Maybe the fact that we have played seven games in 21 days has caught up with us.
"But it is important that we don't use that as an excuse. We will now look at ways in which we can improve recovery and preparation to try and take it forward. We will learn what we can from it.
"We've been beaten and we have got to take it. We are disappointed but we have got to try and turn that round now and set ourselves on another unbeaten run of games.
"I didn't think our defeat was down to anything tactical - I just though that they were a bit brighter, sharper and hungrier all over the pitch. They looked a little less weary.
"There has been a change here and they have got some fresh impetus. It is never an easy place to come to, but I still felt with what we have got we should still come here and get a result. We are disappointed that we didn't."
The game saw Danny Tiatto receive his fifth caution of the campaign - putting him out of next Saturday's Championship fixture against Plymouth at the Walkers Stadium.
Kelly added: "Danny has done well for us. He has played a lot of games for us with a lot more discipline.
"But we have got players that come in and perform in that role - so that is what we will do."