Ryan Mathews (factured collarbone) told XTRA Sports 1560 that he has "no doubt" he'll be ready to go in Week 1 versus the Raiders.

Already out of his sling and doing light workouts, Mathews believes he's ahead of schedule. He will begin running next week. Mathews' initial 4-6 week timetable would indeed allow him to return for the opener. The team doctor for the Chicago Bulls and Chicago White Sox, who has not examined Mathews' injury, advises a broken clavicle typically takes six weeks to heal. "Studies have shown 8.8 weeks is how long it takes for NFL players to get back from clavicle fractures," Ghodadra told NFL Network. We suspect Ghodadra is on the pessimistic side just as Mathews is overly optimistic.