QPR will face one their toughest assignments in the dozen games on the run-in at the weekend, according to Neil Warnock .
Rangers are unbeaten in 10 league games since the New Year's Day reverse at Norwich City.
But the Rangers boss won't be taking anything for granted against Sven Goran Eriksson's Foxes.
He said: "It will be a good test for our central defenders because in Yakubu, Drius Vassell and Paul Gallagher, they have some good players.
"It's probably as difficult a game as we're going to have for the rest of the season because of the money they've spent."
City, seventh, have lost only once in their last 10 outings and should prove tougher than earlier the season when, under Paulo Sousa, they were well beaten by two Jamie Mackie goals at the Walkers Stadium.
They have Chelsea defenders Jeffrey Bruma and Partick Van Aanholt on loan, as well as Tottenham's Kyle Naughton - who was a recent target for Warnock.