The 2017 NFL supplemental draft is taking place today, at 1. p.m. ET to be precise. And ehm....no one really cares.
Every year, the NFL holds a supplemental draft for college players who lose out on playing college football after the NFL draft ends--folks who get suspended, mostly. Usually, there are one or two interesting players in these drafts. Terrelle Pryor entered the NFL this way, for instance, as did Josh Gordon to somewhat less successful results.
The supplemental draft works with a bidding system, kind of. The draft order is semi-randomized, with the first ten picks randomly distributed over the first ten teams in the original 2017 NFL draft order (before any trades), the second ten picks over the second ten teams, and the final twelve picks over the twelve 2016/17 playoff teams.