Ross and Franks are expected to compete against Chykie Brown and Asa Jackson for the No. 3 cornerback job. These signings aren't a surprise because Ross and Franks were the most impressive among the tryout defenders.
Ross, 31, has a connection with Ravens secondary coach Steve Spagnuolo. He was a starter for the Giants in 2007 and 2008, when Spagnuolo was the defensive coordinator there, but was limited to four games last season because of a back injury.
Franks, 26, played in every game for the Falcons the past two years as a reserve. A fifth-round pick by Atlanta in 2010, he has three career interceptions and broke up nine passes.
To make room, the Ravens cut three undrafted rookies: linebacker Xavius Boyd (waived injured with hamstring), safety Dexter Moody and cornerback Avery Patterson. The Ravens had waived wide receiver Aaron Mellette and linebacker Adrian Hamilton earlier in the week.