The San Francisco 49ers released OG Josh Garnett Saturday, Aug. 31, and waived/injured DB Adrian Colbert and OL Andrew Lauderdale. RB Jerick McKinnon (knee) and WR Nick Williams (undisclosed) were placed on the Reserve/Injured list, TE Garrett Celek (undisclosed) was placed on the Physically Unable to Perform list, and LS Kyle Nelson was moved to the suspended list. DB Antone Exum, LB Demetrius Flannigan-Fowles, DE Jamell Garcia-Williams, DL Kevin Givens, S Marcell Harris, TE Daniel Helm, WR Malik Henry, LB Elijah Lee, LB David Mayo, DE Damontre Moore, LB LaRoy Reynolds, OG Ross Reynolds, S Tyree Robinson, QB Wilton Speight, WR Chris X. Thompson, DL Jordan Thompson, OL Najee Toran, DE Jeremiah Valoaga, RB Austin Walter and RB Jeffery Wilson were waived.