LB Sio Moore suffers strained neck

GREEN BAY, Wis. -- Oakland Raiders linebacker Sio Moore was taken off on a stretcher with a neck injury in the second quarter of a preseason 31-21 loss to the Green Bay Packers on Friday night.

Moore was taken to a local hospital for evaluation, and Raiders coach Dennis Allen said X-rays were negative, calling the injury a neck strain. Moore returned to Lambeau Field and was set to fly back to Oakland with the team.

"I don't know what kind of timeline that means, but obviously the most encouraging thing is that Sio's fine," Allen said.

Moore moved his legs back and forth while face down on the field after pursuing running back DuJuan Harris. It appeared Moore might have been hit in the head.

Trainers placed Moore on a board and moved him to the stretcher, where he was immobilized. The second-year player gave a thumbs-up as he was taken off the field while the crowd gave a standing ovation.

Fellow starting linebacker Nick Roach and starting cornerback Tarell Brown also left the game. The Raiders said both players suffered concussions.

For the Packers, defensive lineman B.J. Raji left after the first quarter with an arm injury. He remained on the sideline for much of the game with a black sleeve on his arm. Coach Mike McCarthy said Raji "felt confident" about the injury and told him it wasn't serious.

Moore, 24, was a third-round pick out of Connecticut in 2013. He started 11 games as a rookie and had the inside track over Miles Burris for the job.

Information from ESPN.com's Bill Williamson and Rob Demovsky and The Associated Press was used in this report.