From Bleacher Report. Check out the entire piece on this link.

It is back to the trenches for the second time.

In our last episode of this 12-part throwback comparison series, we addressed some of the best offensive tackles in the league. This time around, we are looking at the six guards named to the Pro Bowl in 2013 and who they may compare to in terms of all-time greats. In case you're wondering, these performers are in no particular order.

The criteria are multi-faceted and one legend doesn’t fit all. We are talking style as much as anything because after all, the eye test is still the best pop quiz ever. But other factors will be taken into account when making comparisons.

It’s worth noting that there were some impressive performances as rookies, most notably Kyle Long (Chicago Bears) and Larry Warford(Detroit Lions). But we’ll let them hone their skills a little longer in theNFL.