A source with knowledge of the situation tells PFT that Light will indeed retire.
It’s unknown when the move will be official. Presumably, the Patriots would like to keep it under wraps until after the draft, so that a replacement on the depth chart can be selected. Nate Solder, a first-round pick in 2011, is expected to replace Light in the starting lineup.
UPDATE 4:58 p.m. ET: Yes, Deion Branch also is on the roster. But he was gone for several years.