Marshall was hospitalized in April after being stabbed in the gut, and his wife, Michi Nogami-Marshall, was arrested shortly thereafter.
The charge of aggravated battery with a deadly weapon against Nogami-Marshall has not yet been pursued, largely due to the fact Marshall hasn't spoken to police since originally telling them he slipped and fell on a broken vase and wasn't stabbed.
According to the Broward Sheriff's Office, Nogami-Marshall "did unlawfully and intentionally arm herself with a kitchen knife and stab the victim in the abdomen," although she told the cops it was in self-defense.
It's unknown what Marshall said in his recent statement to investigators, although a sheriff's office spokesman told Fox Sports that "the investigation continues."
This news comes less than a month after Nogami-Marshall was arrested again, that time for violating a judge's order not to have contact with Marshall or come within 500 feet of his Southwest Ranches home.
Fox Sports says Marshall could be subject to a suspension when the NFL ends its lockout, based on the league's personal conduct policy.
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"It's a hypothetical, but I would tell you that we do expect anyone who is involved with a legal issue to cooperate," NFL commissioner Roger Goodell told Fox Sports.