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Buffalo signs Caldwell, Hills

Pittsford, NY (Sports Network) - The Buffalo Bills signed offensive linemen Antoine Caldwell and Tony Hills on Sunday. Per team policy, terms of the deals were not released.

Caldwell was a third-round pick of the Houston Texans in 2009 and started in 19 of the 39 games he played with the team over the past four seasons.

Hills was a fourth-round selection of the Pittsburgh Steelers in 2008 and has played in 11 games with Pittsburgh, Denver and Indianapolis.

07/28 18:29:08 ET