Ollie Watkins has scored in two of Thomas Frank's four games in chargeFollow live text coverage from 14:00 GMT on Saturday
Queens Park Rangers midfielder Geoff Cameron could return from a hamstring problem after missing the 1-0 defeat at Blackburn on Saturday.
However, on-loan striker Tomer Hemed is a doubt with a groin problem.
Brentford will assess Lewis Macleod (hamstring) but fellow midfielder Kamo Mokotjo (calf) is sidelined.
Forward Emiliano Marcondes (foot) is nearing fitness while left-back Rico Henry is working his way back from a long-term knee injury.
Match facts
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QPR have not beaten London rivals Brentford in a league game since March 2016 - they have drawn one and lost three since.
Brentford are unbeaten in three games at Loftus Road in all competitions (W2 D1), though they drew 2-2 in their last match there despite being 2-0 ahead.
QPR have won their last two home league games, keeping a clean sheet each time. They last won three in a row without reply in March 2016, with the third game in that run a 3-0 victory over Brentford.
Brentford are winless in their last 10 away league games (D5 L5), conceding at least once in all of these games.
QPR manager Steve McClaren has not beaten Brentford in three Championship meetings against them (D2 L1) - his only win over the Bees came in October 2002 as Middlesbrough manager, a 4-1 win in the League Cup.
Brentford's Neal Maupay is the Championship's top scorer so far this season (11 goals), though the Frenchman has failed to score in his last two games.
Source: bbc.com