What happened: Dallas upgraded Cooper Flagg from questionable to probable with a mild left shoulder sprain. The change followed his participation in morning shootaround ahead of tonight's game at Miami.

Why it matters: Flagg's status determines Dallas's available rotation to open the week. Moving to probable keeps him on course to play instead of missing time early in the season.

What to watch: Pregame warmups in Miami will settle whether he is cleared to play.