Brentford boss Dean Smith felt his side did not do enough to win the match.
“They started the game quite well in the opening minutes, but then we were in control. I don’t think they saw the ball,” he said.
“It looked like it was going to be one way traffic, but then the Leeds goal comes from an offside position.
“At half-time we were still in the game and we felt we had a chance in the second half.
“We were too sloppy on the ball and the subs didn’t work today.
“We were very poor on the ball, certainly in the second half.
“We can take the positives from a six-point week. We’ve lost a game from a linesman’s decision.
“We didn’t do enough to win the game. They left the grass longer to make it a slow game.
“We should have had a penalty when Neal Maupay gets thrown to the ground. You want the big decisions to go your way, but they didn’t today.”