Aaron Wilson of the Profootball.scout.com reports Baltimore Ravens free agent safety Tom Zbikowski has agreed to a three-year contract with the Indianapolis Colts, according to a league source with knowledge of the situation. A former third-round draft pick from Notre Dame, Zbikowski is a 5-foot-11, 200-pounder who recorded 23 tackles and one sack in four starts last season for the Ravens before being replaced at strong safety by veteran Bernard Pollard. Source: The Redzone