Defense wins championships and this year's crop of underclassmen may be the best the league has seen in over a decade. The list was very difficult to narrow down to the top 20, but after spending most of the day yesterday and the hours overnight, I have compiled a list that I feel showcases the best defensive underclassmen in this year's Draft.

As with the offensive top 20, I couldn't fit all the top end talent everyone feels deserves to be on the list. I, as always, welcome you to use the comment section to list those players and show your support.