T Jake Long (No. 77)
The Rams locked up Jake Long in free agency in hopes that he'll once again establish himself as the best left tackle in all of football.
Long made the Pro Bowl in each of his first four seasons and appeared to destined for a Hall of Fame career, but injuries in the last two seasons have temporarily derailed that train.
If he is finally healthy, his dominate presence will give the Rams their best offensive line since the Greatest Show on Turf era.
T Rodger Saffold (No. 76)
Rodger Saffold was St. Louis' second-round pick in 2010 and surprised everyone by immediately winning the left tackle job and providing stellar play.
However, he has been struggling with injuries, which has forced him to miss 13 games over the last two seasons.
With Long on board, the Rams will ask Saffold to move to right tackle. If the move is successful, the Rams could end up with the best pair of tackles in the entire NFL.
G Harvey Dahl (No. 62)
Harvey Dahl is a mean, nasty player who provides the offensive line with tenacity and gives it an edge. He has been the Rams' best offensive lineman since his arrival in 2011 and will be a key part of the offensive front in 2013.
Dahl did miss two starts in 2012 due to injury and is 32 years old, but he should have another year or two of solid play left in the tank.
C Scott Wells (No. 63)
Scott Wells was a Pro Bowl center for the Packers in 2011 and was expected to provide the Rams with the same top-notch production. But he missed nine games due to injury.
If the 32-year-old can stay healthy in 2013, the Rams will have a very impressive offensive front.
G Shelley Smith (No. 66)
Shelley Smith was signed midseason in 2012 as an unknown waiver pickup, but he surprised everyone, starting six games and playing surprisingly well.
Smith is the likely front-runner for the left guard job. If he can develop and further improve his play, he'll be a solid contributor for the Rams in 2013.
C/G/T Barrett Jones (No. 67)
Barrett Jones was a steal in the fourth round of the 2013 draft.
With Wells missing nine games last season, Jones' primary role will be backing up him as the No. 2 center. If Wells goes down again, the Rams can plug Jones into the mix without skipping a beat.
However, he's much more than a backup center. He can play every position on the offensive line and will be ready to jump into action the minute a starter goes down.
Jones will likely spend most of the 2013 season as a backup. He'll compete for the left guard job, but he'll have a tough time beating out Smith.
G Brandon Washington (No. 70)
Brandon Washington was a promising prospect from the University of Miami. But he surprisingly slipped to the sixth round of the 2012 draft, selected by the Eagles at No. 200 overall.
Washington was cut by Philadelphia just before the start of the 2012 regular season, and the Rams scooped him up.
He needs some development, but he should make the final roster and will provide valuable depth at guard.
G Rokevious Watkins (No. 73)
Rokevious Watkins won the left guard last season by default.
He started the 2012 season opener in Detroit, but he was overwhelmed by Detroit's tough defensive front and had a poor showing. He got injured in the game and missed the final 15 games of the season.
Now, Watkins is back to square one and is competing for the left guard job once again. However, this time around, he actually has some serious competition.
Watkins will miss the first game of 2013 due to an injury, and suspension will likely be the difference in what should be a neck-to-neck race at left guard.
Still, even if he fails to win the starting job, he'll provide the Rams with reliable depth. And since he appeared in only one game last season, he's still eligible for the practice squad.
G Ryan Lee (No. 59)
Ryan Lee is a small-school prospect out of Furman, and there is little info available regarding his play and qualifications.
He will compete for a job as a backup guard, but since that's a crowded position, he'll have a tough time making the roster.
G/T Chris Williams (No. 65)
Chris Williams is a five-year veteran with 38 starts on his resume. He was released by the Chicago Bears during the 2012 season and was signed by the Rams. He appeared in three games.
Williams will compete at left guard, and his experience could give him an edge over younger players such as Smith and Watkins.
He is expected to make the final roster, either as a starter or as depth.
T Ty Nsekhe (No. 60)
Ty Nsekhe is a mammoth tackle at 6'8" and 325 pounds, but the 27-year-old is lacking in experience. He spent his first three seasons as a pro in the Arena Football League, where he played for Corpus Christi, Dallas and Philadelphia.
In 2012, he finally got a shot at the NFL after being signed by the Indianapolis Colts. But he was released by the end of training camp. The Rams picked him up and signed him to the practice squad.
Nsekhe is still eligible for the practice squad, but he has a chance to make the roster as a backup tackle. Given the injuries to Long and Saffold, the Rams need all the backup tackles they can get.
T Joe Barksdale (No. 68)
Joe Barksdale was a highly touted prospect out of Louisiana State and was considered a first-round prospect at one point, but he slipped to the third round in 2011 and was picked up by Oakland.
Oakland released Barksdale several weeks into the 2012 season and he was picked up by St. Louis. He started two games in place of Wayne Hunter and Rodger Saffold, playing well in his limited action.
With his experience, he'll be the No. 3 tackle on the team.
T Sean Hooey (No. 64)
Sean Hooey played tackle at Cincinnati during his collegiate career, so perhaps his experience in a fast-paced offense will make him useful to the new and improved Rams offense. He will have a tough time cracking the final roster, but the practice squad is always an option.
G Braden Brown (No. 69)
Braden Brown is a 6'6", 300-pound tackle who was a solid performer at BYU. But the rookie hopeful will have a tough time beating out Joe Barksdale, Chris Williams and Ty Nsekhe for a tackle spot.
C Tim Barnes (No. 61)
Tim Barnes is a hometown favorite who played for the Missouri Tigers during his collegiate career. He made the final roster in 2012, but, unfortunately, he'll likely be cut this year since the team found a new backup center in Barrett Jones.
C/G Kevin Saia (No. 79)
Kevin Saia is a small-school hopeful out of Louisiana Tech, but with plenty of competition at both guard and center, he'll have a tough time surviving the first round of cuts.