What happened: Thomas Muller and Robert Lewandowski connected in Chicago days after wildfire smoke postponed the Fire-Whitecaps match that would have brought them together on the pitch. Chicago Fire shared the meetup on social media, tagging Vancouver's account.

Why it matters: The two were set to face off when Vancouver visited Chicago, a matchup with added interest since Lewandowski joined the Fire this month. That game got scrapped by air-quality conditions, leaving the sideline meeting as their only reunion for now.

What to watch: Watch for a rescheduled date for the postponed Fire-Whitecaps match, which would give the two a chance to meet on the field.