Before they landed in Seattle's camp, Benson Mayowa and John Lotulelei knew nothing of the Seahawks' recent history of giving undrafted rookies a spot on the final 53-man roster.
All they understood was the difficulty of coming into a camp where there were very few position competitions and with a team facing high expectations.
While much of the focus when the Denver Broncos face the Seahawks on Saturday night will be on quarterbacks Peyton Manning and Russell Wilson, there are plenty of subplots.
One that has emerged in the three weeks of Seahawks camp is another possible influx of undrafted free agents making a splash.
While Seattle's current roster is littered with undrafted free agents, there are a handful that stood out in the preseason opener, including Mayowa, Lotulelei and offensive lineman Alvin Bailey.