The Facts: According to Matt Maiocco of CSNBayArea.com, the 49ers signed Lewis Wednesday, adding a guy who knows new coach Chip Kelly's system.

Diehards Line: Kelly brought Lewis to Philadelphia last fall, though he didn’t appear in a game. He joins Colin Kaepernick, Blaine Gabbert and Dylan Thompson on the roster at the moment. Lewis last played in 2013 with the Bills, and has also done time with the Browns. Of course, as PFT notes, the future of Kaepernick will be the main topic of concern there. As soon as Brock Osweiler left Denver, the possibility of a Kaepernick trade popped up, which is probably fine with him since his agents started spreading the word they wanted a trade last month.