Denver Broncos wide receiver Rod Smith, the franchise leader in every major receiving category, will not return to the field in 2007, the team decided on Thursday, and his future in the game is now uncertain. Smith spent the first six weeks of the season on the physically unable to perform (PUP) list, but returned to practice on Oct. 24 for the first time since undergoing extensive hip surgery more than eight months ago. At times during his rehabilitation, the 13-year veteran publicly expressed some doubts about when, or even if, he would be able to come back and play at all in 2007. "He's a warrior," coach Mike Shanahan said on Thursday afternoon. "If he can't get back, then something is seriously wrong."