Kiper & McShay build the nation's best secondary: Top CB, S prospects

Delpit's second INT seals game for LSU (0:21)

LSU's Grant Delpit picks off Nick Fitzgerald for a second time as LSU goes on to win 19-3 over Mississippi State. (0:21)

ESPN NFL draft experts Mel Kiper Jr. and Todd McShay identify their picks for the top defensive backs in the country. And it's no surprise that LSU -- with its 16 interceptions tied for second in the nation -- is well represented.

They also choose 2019 prospects rising up draft boards and give their picks for under-the-radar prospects to keep an eye on, the College Football Playoff and CFB MVP.

College football's best defensive backs

Best lockdown corner: Greedy Williams, LSU

If I'm starting a college football team from scratch, Williams is one of my first picks. There's a reason he's my top-ranked cornerback in next year's draft. The third-year sophomore has a big 6-foot-3 frame and elite ball skills -- he has eight interceptions and 19 pass breakups in two seasons at LSU. Williams struggled a little bit a week ago against Alabama, but he doesn't have much bad tape. He has an extremely high ceiling and is a potential top-five pick.

Runner-up: Deandre Baker, Georgia. Baker isn't far off from Williams, and both could go in the top 10 next April.