Jeff Roberson/Associated Press
This is a bit misleading, as there's not necessarily a key one-on-one battle between any two players on the offensive line, but there's still a lot of confusion that needs to be overcome before the start of the season.
First-round selection Greg Robinson is taking reps at left tackle despite the common assumption that he'd begin his career at guard. Incumbent Jake Long suffered a terrible knee injury late in the 2013 season and is surely still feeling some lingering effects, so Robinson is stepping in as his replacement.
It's unclear if Robinson is just filling in for the time being, or if the Rams actually plan to start Robinson at left tackle for the beginning of the 2014 season, which would provide Long more time to nurse his wounded knee.
There's also some uncertainty at center. Veteran Scott Wells is out of action, leaving Tim Barnes—who started four games in 2013—as the starter. Barnes is also getting some competition from second-year pro Barrett Jones.
Whether Jones or Barnes wins the battle is somewhat irrelevant. The bigger question is, can either player prove to be a better option than Wells if and when he returns?
Rodger Saffold and Davin Joseph are holding down the guard positions, but one of them (most likely Joseph) will be replaced by Robinson after Long returns.
At this point, the only lock on the offensive line appears to be Joe Barksdale at right tackle. Other than Barksdale's, practically every other position seems to be up in the air.
With four preseason games coming up, there's little doubt that the Rams will find the perfect combination before Week 1.