The Buffalo Bills keep adding to their offensive line this offseason. They've now brought in former Tennessee Titans guard Quinton Spain to the team with a one-year deal.

Quinton Spain went undrafted out of College in 2015. He appeared in seven games that year, starting six. The next two years he appeared in 14 games for the Titans, starting 13 in 2016 then 14 in 2017. Finally, he appeared and started in 15 games last season.

Spain's no stranger to adversity. That's a good thing, as he'll probably be fighting for a spot in the rotation in 2019 with the Buffalo Bills.

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The Bills adding so many new names means they're clearly serious about protecting Josh Allen. No matter what you think of the quarterback, Buffalo obviously believes in him. Giving him as much protection as possible should therefore be a high priority.

Of course, it also means no spot is guaranteed for Spain. That's especially true when considering they only agreed to a one-year deal. There's really not much risk of loss if the Bills decide to go a different way.

However, it would come as no surprise if Spain found his way into a starting role. At 6-4, 330 lbs Spain is an absolute unit. He's also known for his fantastic pass blocking abilities. That's something the Bills will covet with Josh Allen in the pocket.

The Buffalo Bills are still building towards the future. Their biggest piece in that puzzle is their quarterback – Josh Allen. Due to that, protecting him is their highest priority.

Getting someone like Quinton Spain might not seem like a major offseason move. However, the guard could play a pivotal role in the offense and help to protect the asset that is Allen.

Therefore, this could be looked back on as a fantastic free agent signing in 2019.