Running back could be the most fascinating position in free agency. Among the names available: DeMarco Murray, the NFL's leading rusher last season; Justin Forsett, a dual-threat runner who resurrected his career in Baltimore last season; Mark Ingram, a former Heisman trophy winner coming off his breakout season; and Ray Rice, the former Raven who was at the center of the NFL's domestic abuse crisis earlier this season. And don't forget about Adrian Peterson, who could be available by trade or simply cut by the Vikings following his own off-field controversy.
The position isn't considered as valuable as it once was, but there's talent aplenty for teams in need of rushing help.
Find all the notable unrestricted free-agent running backs below.