Frank Gore just cut a deal with prosecutors, TMZ Sports has learned ... agreeing to plead guilty to an ordinance violation to close out his domestic violence case.
The San Francisco 49ers legend pled guilty to violating the public health nuisance code in New Jersey on Monday -- a downgrade from his initial charge of simple assault. He was ordered to pay fines and fees, which, according to court records, totaled around $2,000.
His other false imprisonment charge in the case was dismissed.
It's somewhat surprising, considering the heinous allegations against him.