What happened: MLS postponed a game on the night the league returned to play after wildfire smoke forced the call, according to Tom Bogert. The match paired two of the league's better teams and was to mark Robert Lewandowski's debut against former Bayern Munich teammate Thomas Muller.

Why it matters: The postponement knocks out what was shaping up as one of the league's headline nights, with Lewandowski cast as MLS's marquee draw now waiting on a new date to face Muller. The delay also affects two of the league's stronger sides at a point in the season when postponements can compress the schedule.

What to watch: Watch for MLS to announce a rescheduled date for the postponed match and confirmation of when Lewandowski's debut against Muller will actually take place.