2017 NFL Free Agency: Star rating is out of five. Age listing as of Sept. 1, 2017.
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Andrew Whitworth, OT, Bengals. Age: 35. Signed with Rams (3 years, $36 million)
Andrew Whitworth would be rated at five stars if it weren't for his age. He's been one of the top left tackles in the NFL for a very long time. However, he just turned 35 and could begin to decline at some point in the near future.
Russell Okung, OT, Broncos. Age: 28. Signed with Chargers (4 years, $53 million)
Russell Okung is certainly one of the most physically gifted left tackles in the NFL, but he definitely has an extensive injury history that is weighing his ranking down. Okung did, however, play in all 16 games this past season, and was one of the few bright spots on Denver's offensive line.
Ricky Wagner, OT, Ravens. Age: 27. Signed with Lions
Ricky Wagner looked lost when taking over for Michael Oher in the 2013 premiere. He's come a long way since then. The former fifth-round pick played very well at right tackle this past season and should be able to obtain a substantial contract as a result.
Kelvin Beachum, OT, Jaguars. Age: 28. Signed with Jets
Kelvin Beachum is a talented left tackle who would be rated a bit higher than this if he were healthy. Beachum tore his ACL in 2015 and struggled this past season because he wasn't 100 percent. However, he should provide solid value this spring. He figures to be closer to 100 percent now that he's two years removed from his knee injury. Plus, he's only 28. Beachum could be one of the better signings this offseason.
Riley Reiff, OT, Lions. Age: 28. Signed with Vikings
Riley Reiff was moved to right tackle this season after the Lions spent their 2016 first-round pick on Taylor Decker. Reiff has been a pretty average blocker throughout his career despite being a former first-round selection himself.
Ryan Clady, OT, Jets. Age: 31. Announced retirement
Once the 12th-overall pick in the 2008 NFL Draft, Ryan Clady was enjoying a great career in Denver until suffering a string of injuries. He's played in just 27 of 64 possible regular-season games the past four years, and he struggled while he was on the field last season. Clady could get healthy and rebound, but teams can't trust him enough to give him anything outside of 1-year "prove it" contracts going forward.
Sebastian Vollmer, OT, Patriots. Age: 33. Announced retirement
Sebastian Vollmer has missed 38 games the past six years, including all of 2016. He's been great when healthy, but that hasn't been very often. He'll also be 33 in July, so his skills are eroding as well.
Matt Kalil, OT, Vikings. Age: 28. Signed with Panthers
Matt Kalil has dealt with numerous injuries over the past few years, and he's regressed as a consequence. He's performed on a replacement level recently. Perhaps Kalil will get healthy, but the Vikings can't trust him anymore.
Austin Pasztor, OT, Browns. Age: 26. Signed with Falcons
Austin Pasztor replaced the Kansas City-bound Mitchell Schwartz and did an OK job. Pasztor is a serviceable starter who pass protects well. He was a clear downgrade from Schwartz, however.
Andre Smith, OT, Vikings. Age: 30. Signed with Vikings
Andre Smith used to be a terrific right tackle. It's unclear what happened to him, but perhaps the lethargy concerns teams had with him going into the 2009 NFL Draft can explain it. Smith has been awful the past two seasons, but it's difficult to ignore his talent level. Hopefully someone can motivate him.
King Dunlap, OT, Chargers. Age: 32. Announced retirement
King Dunlap has come a long way since being benched in a playoff loss while with the Eagles. He went to San Diego and performed well while on the field. However, Dunlap's issue is that he hasn't been able to stay healthy, missing 18 games in four seasons while on the Chargers' roster. I'm sure Dunlap will have some demand, given how desperate teams are for offensive line help, but the franchise that signs him better make sure they're prepared for Dunlap missing action.
Mike Remmers, OT, Panthers. Age: 28. Signed with Vikings (5 years, $30 million)
Mike Remmers has plenty of starting experience, which is his best attribute. Remmers shouldn't be a starter, but he could serve well as a top backup swing tackle.
Michael Oher, OT, Panthers. Age: 31.
I'm not sure if Michael Oher deserves two stars because of his health. Oher hasn't been able to get cleared from his concussions, prompting the Panthers to give up on him. Oher was undoubtedly blindsided by this, but if he can get cleared, some teams will undoubtedly be interested in him to be a capable swing tackle reserve. Some teams that make sense for him include the Texans, Broncos, Raiders, Saints and Patriots, among others.