Jets running back Curtis Martin reiterated Wednesday he wants to play this season, but is unsure when he will be able to return. The NFL's No. 4 all-time leading rusher said he is working out every day so he can come back as quickly as possible, and is hopeful he can play in the season opener September 10 at Tennessee. But he made no guarantees about when his injured right knee will allow him to resume his career. "I'm working out as hard as I can," said Martin, resolute as always.