What happened: The Dallas Cowboys have ruled out cornerback Cobie Durant, safeties Malik Hooker and P.J. Locke, and linebacker DeMarvion Overshown for Sunday's game against the Baltimore Ravens. The four defensive players will not travel with the team to South America.

Why it matters: The multiple absences deplete the Dallas secondary and linebacker corps ahead of facing Baltimore's offensive scheme. The Cowboys must adjust their defensive rotations significantly for the international showcase.

What to watch: Dallas will rely on practice squad elevations to finalize the active roster before departing for Rio de Janeiro.