Osgood, Ventrone and Spillman were all core special-teams players in 2013 when the 49ers ranked fifth in the NFL in opponent's kickoff-return average and 13th in punt returns. Wide receiver Brandon Lloyd made the cut after he didn't play in the final two preseason games and had just one catch for seven yards this summer. Nelson, who doubles as a tight end, caught two short touchdown passes in the preseason finale Thursday in Houston. The 49ers placed fullback Will Tukuafu and rookie cornerback Kenneth Acker (undisclosed) on injured reserve. 49ers final cuts RB Glenn Winston; OT Carter Bykowski; LB Shayne Skov; TE Asante Cleveland; LS Kevin McDermott; S C.J.