The Oakland Raiders held their first practice of training camp on Friday in Napa, Calif., but Trent Richardson didn't participate. Oakland announced the former Alabama All-American had been placed on the non-football injury list.
The non-football injury list is for players who get hurt away from team activities, although the Raiders did not announce an injury for Richardson. His placement on the NFI list also might indicate he did not pass or did not take Thursday's conditioning test.
Click here for link