In a move that could be interpreted as a sign that franchise quarterback Peyton Manning might not be recovered from knee surgery in time for the start of the regular season, the Indianapolis Colts have added a veteran quarterback.  And possibly two.

Per a league source, Quinn Gray has signed with the Colts.

Gray spent his first four seasons with the Jaguars, appearing in 11 games and starting four, all in 2007.  He signed with the Texans as a free agent, but was released after failing to sufficiently pick up the offense during offseason workouts.

We’ve also gotten an unconfirmed tip that the Colts have added Jared Lorenzen, who was cut by the Giants on July 23.

The other quarterbacks on the roster are Jim Sorgi, Josh Betts, and rookie Adam Tafralis.