The 2021 college football season is finally upon us. This Saturday brings the first FBS contests of the fall, and with it, plenty of opportunities for 2022 NFL Draft prospects to rise through the pack and declare themselves as top prospects for next April. But to fully appreciate the big movers throughout the course of the fall, one must know where everyone is starting. That may feel like an overwhelming prospect, but worry not, football fans! We are here to help. TDN's scouting staff has spent the summer studying the major prospects eligible for the upcoming NFL draft, and after a lot of film, plenty of research, and some extensive cross-checks, we're ready to introduce you all to our personal top-100 eligible prospects via TDN100. These rankings will update throughout the fall, but let this first edition set your expectations for who to watch in the early stretches of this year's college football schedule.