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The Green Bay Packers struck gold twice in the fourth round in back-to-back years. In 2008, the Packers drafted guard Josh Sitton from Central Florida, while in 2009, they took guard T.J. Lang from Eastern Michigan. Over the past few years, the two have solidified the interior offensive line for Aaron Rodgers and have slowly turned into two of the best offensive lineman in the entire National Football League.

In this video breakdown, I took a closer look at what makes Sitton and Lang, what was until recently the NFL’s best guard duo. Note: This video was created BEFORE, Josh Sitton was released by the Packers. Individually, he’s still a Top 10 guard in the NFL.

Sitton was released by the Packers on Saturday, the most shocking cut of the year perhaps since he was arguably a top-three NFL guard and making under $7 million this season. Lang is set to be a free agent in 2016 and the team may have felt that they needed to start preparing for the future of the offensive line. Sitton is an immediate upgrade to whichever team signs him.

Based on their ability to anchor the line against rushing defensive lineman and create lanes in the run game, this guard pair was the best in the league. The only other guard pair that I would consider ranking up there with them is Trai Turner and Andrew Norwell of the Carolina Panthers, but I would’ve definitely given the Packers' duo the nod. It’s a shame for Green Bay fans, but a bonus for whichever team picks him up and the defensive lineman who will face the Packers this season.

Which includes the Seahawks on December 11.