AMERICAN FOOTBALL CONFERENCE

INDIANAPOLIS — Roster addition: DT Jason Shirley (released by Panthers 5/21). Draft choice signed: QB Andrew Luck (1/1).

NEW ENGLAND — Draft choice signed: LB Dont’a Hightower (1/25). Declared active/non-football injury: DE Justin Francis (undisclosed); WR Matt Roark (hamstring); OG Jeremiah Warren (undisclosed); OT Markus Zusevics (pectoral). Declared physically unable to perform: WR Jeremy Ebert (remains active).

PITTSBURGH — Contract terminated: OT Jonathan Scott.

SAN DIEGO — Contract terminated: DE Luis Castillo.

NATIONAL FOOTBALL CONFERENCE

CHICAGO — Reserve/suspended by commissioner: DT Nate Collins (one game, violation of substance-abuse policy).