Joey Porter's arrest raises an obvious question: What discipline might the Cardinals outside linebacker face from the NFL?
Porter had only been arrested as of Saturday. He had not been charged, let alone convicted.
But a conviction isn't always necessary for the NFL to mete out punishment.
The league suspended then-Seahawks defensive tackle Rocky Bernard for the 2008 regular-season opener even though a court never convicted him on a domestic-violence charge. Bernard agreed to undergo domestic-violence training as part of an agreement that can result in charges being dropped after two years.
In 2009, the San Diego Union-Tribune put together a list of 60 arrests involving NFL players. Quite a few never resulted in suspensions.