Lewis (knee) recently received full medical clearance and shouldn't face any restrictions when NFL training camps open in July, Ian Rapoport of NFL Network reports.
Lewis inked a one-year deal with the 49ers last March and was expected to compete for a backup gig, but was removed from the mix after suffering a season-ending torn ACL in the team's preseason opener. With his knee now fully healed, the well-traveled Lewis, who has spent time with seven NFL teams, should draw interest from clubs still searching for a No. 2 or 3 quarterback. Lewis has posted a respectable 82.2 quarterback rating in seven career regular-season games, though he hasn't appeared in a contest since 2013.