Before clubs compete against other squads, teammates will go head-to-head for prominent roles through training camp. For some, it's the difference between a starting and backup role. For others, it's a small opportunity to make a living in the NFL.
Every year, an unheralded gem emerges and goes on to make an impact during the regular season—take Jacksonville Jaguars wideout Keelan Cole as a prime example. He signed with the team as an undrafted free agent out of Kentucky Wesleyan and finished the 2017 campaign as the leading receiver in yards for the AFC South champions.