In July, he was accused of stomping on a man's head and charged with felony assault for his alleged involvement.
BC-FBN-Raiders-Smith, 3rd Ld-Writethru, 518Raiders release CB Sean Smith, RT Marshall NewhouseAP Photo NY169, NY168Eds: Updates with additional moves.
Smith, 30, has 426 tackles, 98 passes defended and 14 interceptions through nine National Football League seasons.
His next pact reportedly involves one year in jail and three years on probation. While under contract with Oakland in the 2016 and 2017 seasons, he hadn't appeared in a regular-season game since 2015.More news: RWE to acquire Eon's renewables business
The LA Times reported that his plea agreement will be entered Tuesday.
Smith struggled again early in 2017 and was replaced in the starting lineup by TJ Carrie, before finishing the season strong after John Pagano replaced fired defensive coordinator Ken Norton Jr. for the final six games.
Carrie is believed a higher priority to re-sign, although there is some question as to whether the Raiders' interest will match that from other teams on the open market. Teams were allowed to start negotiating with prospective free agents beginning Monday morning. No deal can be finalized until free agency starts Wednesday at 1 p.m.