The move, which was expected, likely means that Austin will return to Dallas next season. The receiver essentially has been offered a one-year contract for $3.168 million, but Cowboys owner Jerry Jones has said he'll consider giving Austin a longer, more lucrative deal.
The only other restricted free agent whom Dallas gave a first-round tender offer was defensive tackle Marcus Spears. However, his was at the "original draft choice" level, which is for less salary and a second-round compensation if he signs elsewhere.
The rest of the tenders were to center Duke Preston (fourth round), safety Pat Watkins (fifth) and offensive tackle Pat McQuistan (seventh). Those three, and Siavii, were tendered at the "original draft choice" level.
Cornerback Cletis Gordon wasn't tendered, but he re-signed with the Cowboys for one year. Financial terms of the deal weren't disclosed.
Dallas also has two exclusive rights free agents -- defensive back Alan Ball and linebacker Steve Octavien. Its only unrestricted free agent is guard Montrae Holland.
Copyright 2010 by The Associated Press