Stevie Brown and Slade Norris came off the field with the Raiders Sunday, meaning they were likely added to the practice squad.
With Manase Tonga, Kellen Heard, Alex Parsons and Kellen Heard also on the field, the Raiders have two more spots to fill. All players must clear waivers before being named to the practice squad and be claimed off the practice squad by another team for its 53-man roster at any time.
When approached by reporters coming off the field, Brown responded with a polite wave and declined comment.
Running back Michael Bush, working on his own with either a cast or heavy wrap protecting his left wrist, went through some agility exercises and waved off requests from reporters.
The last player off the field for practice was new starting center Jared Veldheer, working on shotgun formation snaps under the watchful eye of offensive line coach Jim Michalczik.
Linebacker Quentin Groves did not disclose that he was the starting weakside linebacker, but Trevor Scott was said he was working exclusively with the defensive line and that Groves was working with the first team at weakside linebacker.
More to come following press briefing with Tom Cable . . .