Indianapolis placed linebacker Lawrence Sidbury on injured reserve and waived 11 other players Sunday.
Indy has 78 players on the roster and must get to 75 by Tuesday.
Sidbury was signed in March as an unrestricted free agent and was supposed to help Indy on special teams and add depth at linebacker. He injured his shoulder last week against the Giants and sought a second opinion this week.
The Colts waived cornerbacks Johnny Adams and Allen Chapman, offensive linemen Danous Estenor and Rick Schmeig, defensive tackle Kellen Heard, punter-kicker Brandon McManus, running back Davin Meggett, linebacker C.O. Prime and safety Ashante Williams. Receiver Maurice Williams was waived with an injury settlement. Cornerback Teddy Williams was waived-injured and will revert to Indy's injured reserve if he clears waivers.
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