Preston could return to Bills

Posted by ESPN.com's Tim Graham
DANA POINT, Calif. -- One of the possible destinations for Buffalo Bills center Duke Preston was supposed to be the Oakland Raiders.

Now that the Raiders have traded for Miami Dolphins center Samson Satele, it looks like Preston's options are down to two clubs. He could return to the Bills or join the Green Bay Packers.

An NFL source expected Preston to make a decision early this week.

The Bills signed free-agent Geoff Hangartner, who has played both center and guard but likely will be in the middle. Preston would provide depth at center. He started the final 11 games at center last year but also can play guard.

The Bills still need a left guard after cutting starter Derrick Dockery.