By Mary Cunningham

FC Dallas had a goal ruled out following a video review — on the first night MLS implemented its new VAR system — and went on to lose 3-1 to the Union last night.

The game also marked the first time the Union had ever beaten Dallas in their eight-year history, after five losses and four draws.

Already trailing by three in the 79th minute, Dallas thought it had a goal back when Cristian Colman ran onto a through ball, and though his shot was saved by Union goalkeeper John McCarthy, it fell to Maxi Urruti to score.

But the play went to review because Colman made contact with McCarthy, preventing the keeper from reaching the ball before Urruti, and the goal was ruled out. The whole process took slightly less than two minutes.

C.J. Sapong had turned in a cross from Ilsinho in the 17th minute to put the Union ahead, and five minutes later Ilsinho doubled the lead by lashing the ball home from the top of the box.

The Union duo linked up again in the second half as Ilsinho had his close-range shot saved but cut the rebound back for Sapong to score.

After the review, Michael Barrios added a stoppage-time consolation goal for Dallas, which lost its second straight game and missed a chance to retake the top spot in the Western Conference.