What happened: Sam Sarver received a red card following an interaction with the Houston Dynamo FC crowd in the closing moments of the match, per Tom Bogert. Spectators threw objects toward FC Dallas players as the visitors celebrated converting from the penalty spot deep into stoppage time.

Why it matters: The late penalty salvaged a road draw for FC Dallas in the final 2-2 result against Houston. However, the stoppage-time dismissal costs Dallas an attacking option for its upcoming match and puts the crowd altercation under league scrutiny.

What to watch: MLS disciplinary officials will review both Sarver's dismissal and the object-throwing incident ahead of the clubs' upcoming fixtures.