What happened: CF Montreal's apparent equalizer was ruled offside. The decision erased a moment that had briefly been posted as a 1-1 game.

Why it matters: The overturn kept the score from changing in an MLS regular-season match. Calls that reverse an equalizer can shift points-table pressure quickly as the season runs short.

What to watch: Watch for the next official score update and the final result. That will show whether the disallowed equalizer became the match's pivot.