In-form Brentford lead Wolverhampton Wanderers thanks to Alan Judge's goal despite being on the back foot for much of the first half at Griffin Park.
Bakary Sako curled a free kick onto the roof of the net after Rajiv van La Parra had been fouled by Jake Bidwell inside the opening quarter of an hour as the away side started brightly.
La Parra then delivered a cross for Danny Graham, who sent his header crashing against the crossbar and down onto the goal line, with the officials ruling that the ball hadn't crossed the line.
However, the Bees took the lead when Andre Gray burst down the left and found Judge in the box, with the midfielder taking a touch and firing beyond Carl Ikeme.
