Saturday may have been when most of the roster cuts were made by NFL teams, but the maneuvering is continuing on Sunday. Teams are trying to fine tune their rosters by bringing in players released by other teams, and the Detroit Lions are no exception.
On Sunday, the agent of running back Aaron Brown announced on Twitter that the Lions have parted ways with his client.
Lions release RB Aaron Brown for waiver claim they were awarded. Aaron can be claimed by other teams.less than a minute ago via UberSocial for BlackBerry 
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Jordan Woy
JordanWoy
As his agent said, Brown was released because the Lions added somebody off waivers. Based on who was let go to make room on the roster for this new player, it's safe to say the waiver claim is a running back. Exactly who the player is remains a mystery for now, but I'm sure we will find out shortly.