What happened: The Chicago Bulls threw support behind the Chicago Cubs ahead of their wild-card opener in San Diego. The National League series opens Tuesday at Petco Park after last year's set in Chicago.

Why it matters: Opening on the road puts early pressure on Chicago in a short series. City-wide backing underscores the postseason stakes entering October.

What to watch: Watch for first pitch from Petco Park on Tuesday to open the wild-card set.