New England brought Brown in for a workout back in May, but they elected to hold off on signing him to a contract until now.
Brown previously mentioned that his agent had been in contact with four NFL teams including the Ravens. However, we never heard who the other two teams were.
Brown, 30, appeared in 14 games and accounted for 1,000 total snaps for the Oakland Raiders last season. He accumulated 55 total tackles, had four pass defenses, and ranked as the No. 75 of 108 possible qualifiers by Pro Football Focus.