What's left in the backup QB market for Ravens

The Baltimore Ravens are expected to add a veteran quarterback at some point to compete with 2014 sixth-round pick Keith Wenning for the backup job.

Wenning, who spent all of last season on the practice squad, likely won't be handed the No. 2 spot behind Joe Flacco because of his limited experience. He threw 17 passes in the preseason.

In the past, the Ravens added veteran quarterbacks such as Curtis Painter (2012) and Caleb Hanie (2013) in the middle of April. They waited until the end of June to sign Marc Bulger in 2010.

A bad free-agent class for quarterbacks has become even thinner 10 days into free agency. Mark Sanchez (Eagles), Brian Hoyer (Texans), Jake Locker (retired), Josh McCown (Browns) and Christian Ponder (Raiders) have all signed.

There are two quarterbacks who have connections with the Ravens' coaching staff. Michael Vick worked under Ravens quarterbacks coach Marty Mornhinweg with the Eagles and Jets, and Jordan Palmer spent parts of the previous two years with offensive coordinator Marc Trestman in Chicago. Palmer was considered the No. 2 quarterback for the Bears entering last year's training camp before he was beaten out by Jimmy Clausen.

Here are the top five quarterbacks left in the free-agent market:

1. Matt Moore, Dolphins: Moore can get the ball downfield and is capable of winning games in a pinch. He's 11-12 as a starter but has only thrown 10 passes the past two seasons as Ryan Tannehill's backup in Miami. Moore, 30, is too expensive for the Ravens (he made $4 million last year), and he likely doesn't want to go from sitting behind Tannehill to doing the same behind Flacco. Update: Moore reportedly re-signed with the Dolphins.

2. Tarvaris Jackson, Seahawks: He's only 31 and he's thrown over 1,000 career passes. Jackson has only attempted 14 throws the last two seasons, but he has looked strong the past two preseasons. He's four years removed from being a starter for Seattle, and he's thrown 39 career touchdowns and 35 interceptions. Jackson has expressed an interest in returning to the Seahawks, and he talked about going back to the Vikings to back up Teddy Bridgewater. He just visited the Dolphins.

3. Jason Campbell, Bengals: He's an underrated backup who has spent the past two seasons in the AFC North (Browns and Bengals). Campbell, 33, still has good arm strength, but he gets himself in trouble with a long release and questionable decision-making. It was only two years ago when he started for the Browns and beat the Ravens.

4. Matt Schaub, Raiders: He flamed out in his seventh season in Houston (five interceptions were returned for touchdowns), and he was easily beaten out by rookie Derek Carr in Oakland last year. The state of Schaub's confidence has to be a concern. But Schaub, 33, has the best track record of the remaining quarterbacks. He won 40 games in a five-year stretch (2008-12) with the Texans, throwing for over 4,000 yards three times.

5. Michael Vick, Jets: The biggest name left among the available quarterbacks, Vick remains a freakish athlete at 34. But he looked ragged in his three starts for the Jets last season (going 1-2), and some observers suggested he was unprepared and mentally checked out. Vick's playing style doesn't appear to be a good fit for Trestman's offense, and Vick might not want to spend one of his last NFL seasons holding a clipboard for 16 games.

Others of note: Matt Flynn, Josh Johnson, Jordan Palmer, Josh Freeman, Ryan Lindley and Tyler Thigpen.