BUFFALO, N.Y. -- It's a positive sign for Bills fans.

QuarterbackE.J. Manuel was seen on the field throwing before the start of Thursday night's Bills-Lions pre-season finale at Ralph Wilson Stadium. He did not play in the game.

Our Jonah Javad posted the video of Manuel on his Vine Account.

Manuel's knee was injured in the Bills second pre-season game against the Minnesota Vikings, and he had to have what the team called a minor surgical procedure performed after the game.

It's not known if he'll be ready to start against the New EnglandPatriots in week one of the regular season on September 8th.