Out of a Las Vegas hospital, Raiders wide receiver Javon Walker was due back at team headquarters Wednesday evening to be examined by team doctors. Walker was injured while being robbed Monday morning. Raiders coach Lane Kiffin said he spoke with Walker on Wednesday morning. Kiffin said Walker “sounds really well” but offered no other details. “All I can give you is I spoke to him, he’s doing well, and he’s on a plane. He’ll be on a plane this evening, back here,” Kiffin said. “He’ll be here (Wednesday) evening and (this) morning, as well