The Colts see Anthony Castonzo as their long-term left tackle.
Colts placed DE Aaron Morgan on the reserved/retired list.
Colts exercised QB Andrew Luck's fifth-year team option for 2016.
ESPN Colts reporter Mike Wells lists Coby Fleener as a projected 2015 starter.
Coach Chuck Pagano said Donte Moncrief will have "more opportunities" this season.
Kendall Langford said he chose the Colts because he prefers playing in a 3-4 scheme.
Colts signed S Dwight Lowery, formerly of the Falcons.
Free agent S Dwight Lowery visited with the Colts.
Robert Mathis (Achilles') said he hopes to play during the preseason.
Colts signed WR Vincent Brown, formerly of the Raiders, to a one-year contract.
Andre Johnson is expected to be an underneath receiver for the Colts.
Kevin Bowen of the Colts' official website believes second-year WR Donte Moncrief will see "significant reps" as an "entrenched" part of the offensive game plan in 2015.
NBC Washington's Dianna Marie Russini reports contract-year coach Chuck Pagano was offered a one-year extension at a "very modest increase."
NFL.com's Ian Rapoport reports the Colts are not expected to extend contract-year coach Chuck Pagano before the start of the season.
Colts RT Gosder Cherilus is still recovering from a January knee scope.