NAPA -- Raiders running back Mike Goodson was injured in practice Tuesday after an apparent helmet-to-helmet collision with linebacker Philip Wheeler.
Goodson, 25, stayed down on the field for approximately 15 minutes while being attended to by trainers and paramedics. He was strapped to a backboard after having his facemask removed. Goodson was observed moving his legs before being loaded into an ambulance on a stretcher.
The Raiders have not made a public statement about his condition as of yet.
Goodson, the former Carolina Panther, is competing for a backup role behind running back Darren McFadden.
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He was acquired in a March 30 trade with Carolina for offensive lineman Bruce Campbell. Goodson rushed for a career-high 452 yards and three touchdowns with the Panthers in 2010, but he missed most of last season with an injured hamstring that limited him to four games.
The former Texas A&M standout was a fourth-round pick by Carolina in 2009.
More details to follow as they become available.