QPR boss Mick Beale thought Swansea City were fortunate not to have defender Ben Cabango sent off in their Championship encounter.
Joel Piroe scored the only goal of the game for the home side, five minutes after Seny Dieng had saved his penalty.
But Beale did not think his side were brave enough in possession and felt Cabango could have been dismissed inside 30 seconds for stopping Chris Willock's clear run on goal.
He said: "Cabango's a lucky boy. He's definitely made a mistake and pulled him back.
"Chris has been honest because, I think, if he falls over he [Cabango] has gone.
"He didn't and we shouldn't be asking a player to fall over because we don't like that in our game.
"I'm not going to be that type of manager that sits here and canes the referee.
"But that's a tough call and, if it's at the other end, then Russell [Martin] is saying the same."
Swansea boss Russell Martin hailed matchwinner Piroe, 23, after the Dutchman's third goal in as many games secured the points.
Piroe netted 24 times last season and attracted interested from Premier League clubs, with Leeds and Leicester among those reportedly interested in him before the transfer window closed on Thursday.
And Martin said: "We are really lucky to have him. The best bit of business we did was to keep him, for sure.
"He does love it here. He's genuine when he says that. The relationship he has with the staff and the rest of the squad is excellent.
"He is held in such high esteem, and so long as he keeps working hard he will continue to be fantastic for us."
Martin said Piroe was 'really annoyed' by his spot-kick failure on a day when Michael Obafemi was missing from the Swansea squad.
Obafemi was the subject of two deadline-day bids from Championship rivals Burnley and Martin suggested the Republic of Ireland international striker was not in the right frame of mind to play.
He said: "We had a chat after the deadline-day madness and both decided it was best for him to have the weekend off and that he couldn't contribute in a way that he should have.
"He'll come back in on Monday, we'll have a really good chat and we'll make sure he's in the right frame of mind to contribute.
"His head has been filled with all sorts of nonsense since we first came back in, so his energy has been a bit different."
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