Cowboys released QB Kellen Moore.
Moore entered camp as Dak Prescott's backup, but he was outplayed by Cooper Rush this preseason.
49ers released WR Jeremy Kerley.
The slot receiver led San Francisco in both receiving yards (667) and catches (64) last year but apparently the team's coaching staff preferred fifth-round rookie Trent Taylor.
49ers placed fourth-round RB Joe Williams on injured reserve with an ankle injury.
A hot name this offseason, Williams was buried on the depth chart by the end of August, and it is likely the 49ers were looking for any option to stash the running back without burning a roster spot. With Williams and Tim Hightower gone, UDFA rookie Matt Breida is the back to own behind Carlos Hyde