3. Evan Mathis: Mathis, 30, had a lot of success with the Philadelphia Eagles in 2011 and might opt to stick around. If not, he is a decent fallback option for the teams who miss out on the top guards -- Nicks and Grubbs.
Other notable free agents (2011 team in parenthesis): Chris Kemoeatu (Pittsburgh Steelers), Deuce Lutui (Arizona Cardinals), Jake Scott (Tennessee Titans), Bobbie Williams (Cincinnati Bengals), Jake Scott (Tennessee Titans), Mike Brisiel (Houston Texans), Jeremy Zuttah (Tampa Bay Buccaneers).
1. Chris Myers: If the Ravens were to splurge on a center in free agency, Myers might be the guy. He thrived in the Houston Texans’ zone-blocking scheme, which is similar to the one the Ravens started to use in 2011.
Potential suitors: Houston Texans, Baltimore Ravens, Indianapolis Colts.
2. Scott Wells: The Packers are reportedly working to keep the 31-year-old, but right now he is unsigned.
Potential suitors: Green Bay Packers, Houston Texans (if Myers leaves), Baltimore Ravens, Arizona Cardinals.
3. Samson Satele: The cash-strapped Oakland Raiders probably won’t be able to re-sign Satele before the start of free agency -- if at all. Teams looking to add physicality to their running games should give him a call.
Potential suitors: Tennessee Titans, Arizona Cardinals, Indianapolis Colts, Jacksonville Jaguars, Kansas City Chiefs.
Other notable free agents (2011 team in parenthesis): Matt Birk and Andre Gurode (Baltimore Ravens), Jeff Saturday (Indianapolis Colts), Casey Wiegmann (Kansas City Chiefs), Dan Connolly (New England Patriots).