However, Mackay's team doubled their advantage when Mutch's looping cross evaded both Martin Taylor and Matthew Connolly as they challenged for the ball and nestled in the bottom corner with Kenny caught flat-footed.

BBC: QPR 1-3 Watford

But Watford battled back to level before the break as Troy Deeney powered in a header from Jordon Mutch's corner.

BBC: Sport - Football - Watford 1-1 Reading

QPR's 4-2-3-1 system normally offers plenty of protection to the defence, but they were run ragged by the likes of Graham, Mutch, Will Buckley and Don Cowie as Malky Mackay's side took their tally to 38 goals in the Championship this season, more than any other team.

BBC: QPR 1-3 Watford

Watford's Stephen McGinn appeared to be struck by an object thrown from the crowd as he joined Mutch to celebrate the goal but it seemed as though nothing could knock the visiting team out of their stride.

BBC: QPR 1-3 Watford