Lukaku says that he has enjoyed watching Leicester this season and he believes that Jamie Vardy, Riyad Mahrez and Shinji Okazaki will have to be watched very carefully.
However, he believes that Everton also have the attacking players to hurt Leicester, if Claudio Ranieri’s side give them space to play.
“Its up to us to get the balance right between attacking and defending in each moment because we know if we leave them too much space then Vardy, Mahrez and Okazaki can make the difference,” the Belgian striker said.
"We need to be careful – but they do too. We have a lot of players up front who can capitalise on any space.
"It will be a good game. They have been impressive and I like watching them play. It wont be an easy game."
Leicester head into their match against Everton at the top of the Premier League table, having beaten Chelsea in their last outing.
Both Vardy and Mahrez got on the score-sheet against the Blues, and they have proven to be two of the Premier League’s most in-form players this season.
The Toffees do have two attacking players in very impressive form of their own, though.
Gerard Deulofeu and Lukaku have tormented defences across England this season, and they have linked up to devastating effect thus far.
It sets up Saturday's tie perfectly, with both sides determined to get the three points.
If Leicester can win at Goodison Park, they will further strengthen their position inside the top four, while an Everton victory could move them up to fifth.
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