When the Patriots finally release their initial 53-man roster, Brandon Bolden won’t be on it. The running back has been released, according to Field Yates of ESPN.com (on Twitter). 
Bolden re-signed with the Patriots in April, but his spot was shaky from the get-go. The Patriots added Rex Burkhead and Mike Gillislee to the fold this year, giving him an uphill climb as he battled with a group including fellow incumbents James White and Dion Lewis.
Bolden had just one carry last season with four targets. He was more of a special teams guy in New England and it seems possible that he could return at some point.