QPR boss Neil Warnock admitted his side had come through a stern test of their promotion credentials after the 2-0 win at Leicester.
Two goals by Jamie Mackie fired Rangers five points clear at the top of the npower Championship following their best-ever start to a season .
Warnock said: "It was probably our toughest game to date with the travelling we have done this week going to Ipswich on Tuesday and then coming up here. It's all credit to the players, they've stuck at it and restricted a good team. I know they haven't had a good start but they have got some quality players who will be very close to the play-offs."
He added: "It's pleasing we restricted them like we did, I can't remember them having a real chance apart from a couple of shots from outside the box."
Mackie, a £145,000 summer buy from Plymouth, now has eight goals to his name this season, his double following up the brace he scored in the 3-0 win at Ipswich in midweek.
Warnock added: "We had eight or nine new players at the start of the season.
"We have a real mixture of young lads with enthusiasm who want to go to the top and we've got some old campaigners who, like me, are cream crackered and coming to the end of their careers and want to finish on a high."
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