Whoever signs with Buffalo could wind up starting next weekend at home against the Cincinnati Bengals, coach Doug Marrone said Friday. Manuel, who sprained his LCL in Thursday's loss to the Cleveland Browns, is expected to be out for several weeks.
The Bills are also talking with Josh Freeman, sources told ESPN.
Freeman was released by the Tampa Bay Buccaneers this week after being benched and deactivated for last Sunday's game. He started 59 games for the Buccaneers after they drafted him in the first round in 2009.
The Bills were impressed with what they saw from White, who played against Buffalo in the preseason. White, a second-round pick in 2009, was released by the Washington Redskins last month.
Undrafted rookie Jeff Tuel replaced Manuel against the Browns and is the only healthy quarterback on the Bills' roster.