What happened: Cousins confronted Crosby during Friday's team period. Players and coaches separated the teammates before the exchange escalated.
Why it matters: The punishment costs the Raiders' camp starting quarterback and a defensive leader a day of preseason work. It also establishes Kubiak's standard for conduct during his first training camp in charge.
By the numbers: Crosby made contact with Cousins twice on pass plays before the confrontation.
What to watch: Their participation in the Raiders' next practice will show whether the punishment ends after one session.