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The San Francisco 49ers signed defensive lineman Breeland Speaks to a one-year contract Friday and placed cornerback Anthony Averett on the injured list.Speaks, who led the USFL with nine sacks for
Brock Purdy had an up-and-down session during the second day of joint practices between the 49ers and Raiders, but there shouldn't be cause for concern.
A collision with two 49ers defenders injured Raiders star Davante Adams on the first play of Friday's joint practice, an injury termed "not crazy serious."