According to Jason La Canfora of Redskins Insider, there is a chance that 15-year veteran defensive back Troy Vincent may sign with the Redskins today.

La Canfora had this to say:

Not sure how much it will help at this point, but saw Vincent walk in a few minutes ago. I would imagine they would get a deal done with the DB today. They got in touch with him last week and he knows several of the defensive coaches, so I would expect it to get done.

Redskins Insider