Summary -- Getaway day for the Raiders felt like a walkthrough, and, coming off Monday night's exhibition opener and heading into Friday night's preseason game at Arizona, that's probably a good thing. The Raiders added some depth to their linebacker corps in signing free agent Korey Bosworth and he is expected to play against the Cardinals.Offensive play of the day -- Going across the middle in the back of the end zone, Darrius Heyward-Bey stretched out vertically to haul in a bullet from Carson Palmer for a touchdown.Defensive play of the day -- Safety Mike Mitchell has acknowledged he has to slow it down a notch in practice, especially in shorts and shells, and yet ... Mitchell popped training camp revelationreceiver Rod Streater in the back as the ball arrived for an incompletion. Don't fret, Streater was fine.Injury report -- Receiver Denarius Moore (hamstring), running back Taiwan Jones (hamstring), fullback Rashawn Jackson (hip), punter Shane Lechler (left knee), offensive linemen Zach Hurd (head), Ed Wang (shoulder) and Stefen Wisniewski (calf), tight end Brandon Myers (shoulder) and linebacker Aaron Curry (knees) will not play against the Cardinals.Notable -- Free safety Michael Huff practiced but will also miss the game in Arizona as he will be attending the birth of his first child.Quotable -- "It's the first time in nine years we ever looked that good tackling in the first game of the preseason. So whatever (the coaches are) doing must be working." -- defensive tackle Tommy Kelly.Eye on reps -- Receiver Eddie McGee, who missed the exhibition opener with a strained hamstring, was back on the field and getting a lot of work with the second-team offense. He entered camp expecting to compete for a roster spot as the team's sixth receiver.Extra work -- On the heels of his two-drop, muffed-punt performance against the Cowboys, receiver Jacoby Ford was putting in "extra work" with the first-team offense and quarterback Carson Palmer. Ford looked focus going across the middle and hauling in Palmer's passes.Coaching moment -- While a maelstrom swirls about the NFL and the prospect of replacement referees starting the regular season, coach Dennis Allen insists he's not worried about it. "To be honest with you, our focus is on our football team and how we're going to get better," Allen said. "And we're going to play the games when the games come up and that's all that we can control. So that's all we're really worried about."Next practice -- The Raiders play Friday at 7 p.m. at Arizona.