The NFL draft begins on April 24. Here are The Tennessean's rankings for 10 best defensive linemen available, starting with Mason Graham and Walter Nolen.

There will be some heavy emphasis on the defensive line in the draft, including some top interior linemen and edge rushers. Good players will be found on Day 1. And on Days 2 and 3, the teams with the best eye for talent will find hidden gems that can help their football team.

Any player being taken inside the top 10 picks of a draft will surely have been a standout college player and a highly-regarded NFL draft prospect. While some of those players live up to the hype and go on to become superstars, others fail to meet the lofty expectations surrounding their career.