The Ravens lost veteran cornerback Corey Graham in free agency last year and it came back to bite due to injuries at the position.
This year, Baltimore may be looking to add a veteran or two to provide more depth behind oft-injured Lardarius Webb and Jimmy Smith.
Here's a look at who is out there (barring they sign with their current teams before free agency opens on March 10):
Brandon Flowers, San Diego Chargers
Unrestricted; 29 years old; 5-foot-9, 187 pounds *2014 Stats:* 52 tackles, 10 passes defensed, 3 interceptions
A 2013 Pro Bowler, Flowers bounced from the Chiefs to the Chargers for just one season. It was another strong season as Flowers ranked as the 15th-best cornerback in the league, per Pro Football Focus. What Flowers lacks in size he makes up for in physicality and veteran know-how. He had a good game against the Ravens at M&T Bank Stadium last season.
Byron Maxwell, Seattle Seahawks
Unrestricted; 27years old; 6-foot-1, 207 pounds
2014 Stats: 39 tackles, 12 passes defensed, 2 interceptions
Maxwell has been part of the Seahawks' "Legion of Boom" for the past four years, although he was a first-time full-time starter last year (he started 12 games). Maxwell has ideal size and length for the position. He's no Richard Sherman, but he had a strong 2014 season. Given his potential, he may get the biggest deal of any cornerback on the open market.
Kareem Jackson, Houston TexansUnrestricted; 26years old; 5-foot-10, 188 pounds
2014 Stats: 57 tackles, 9 passes defensed, 3 interceptions
Jackson has been a steady starter for the Texans for the past five years. He's an Alabama product and former first-round pick in 2010 who became an immediate 16-game starter. Jackson has steadily improved since having some troubles early in his career. He was the 11th-best cornerback in football* *last year, according to PFF.
Tramon Williams, Green Bay PackersUnrestricted; 31years old; 5-foot-11, 191 pounds
2014 Stats: 70 tackles, 13 passes defensed, 3 interceptions
The former undrafted free agent has started all but one game the past five seasons. He's never been viewed as a shutdown cornerback, but he's been a very solid part of the Packers secondary who has made some big-time splash plays. Williams notched six interceptions in 2010.
Cary Williams, Philadelphia Eagles
Unrestricted; 30years old; 6-foot-1, 190 pounds
2014 Stats: 59 tackles, 9 passes defensed, 2 interceptions
Williams is a Ravens product, as Baltimore took him from a Titans practice squad player to a Super Bowl starter. Williams reportedly turned down a contract extension from the Ravens before the 2012 season and left following getting a ring for bigger money in Philadelphia. The Eagles cut him last week, making the ultra-competitive, long-framed cornerback available once again. Williams reportedly has a "strong interest" in potentially rejoining the Ravens, but is meeting with several other teams, including the Seattle Seahawks.
Chris Culliver, San Francisco 49ers
Unrestricted; 26years old; 6-foot-0, 199
2014 Stats: 45 tackles, 14 passes defensed, 4 interceptions
Culliver has had the tools and he finally put it together last season as a 14-game starter for the 49ers. He hasn't always been very consistent, but he has the size and speed to be a very good corner, and is now coming off his best year. He has a high ceiling.
Antonio Cromartie, Arizona Cardinals
Unrestricted; 30years old; 6-foot-2, 210 pounds
2014 Stats: 49 tackles, 10 passes defensed, 3 interceptions
Cromartie is getting up there in age, but he's still producing. He started all 16 games for the fourth straight season and has missed just two starts since 2008. Cromartie is a fast, long, rangy cornerback with ball skills. He's not a cornerback who likes a whole lot of contact, however.
Charles Tillman, Chicago Bears
Unrestricted; 34years old; 6-foot-2, 198 pounds
2014 Stats: 8 tackles, 1 pass defensed
Former Bears head coach turned Ravens Offensive Coordinator Marc Trestman may put in a good work on Tillman. Tillman is coming off his second torn triceps in as many years, and is closing in on retirement age, but says he's "not going to stop 'till [he's] dead." Before Tillman's injury, Trestman said he was playing at a Pro Bowl level. Tillman was a two-time Pro Bowler not too long ago in 2011 and 2012. He's well-known for his character on and off the field.
Davon House, Green Bay Packers
Unrestricted; 25years old; 6-foot-0, 195 pounds
2014 Stats: 27 tackles, 10 passes defensed, 1 interception
House has been backing up Tramon Williams for much of his four years in Green Bay. He's been good in sub-packages, and could add depth in Baltimore, but hasn't proven he's a starter yet in his career.