2019 NFL combine: Top draft prospects, risers, best of Day 1 workouts

Running backs and offensive linemen went through workouts at the NFL combine on Friday, the first day of drills for the top prospects for the 2019 NFL draft.

ESPN NFL draft experts Mel Kiper Jr. and Todd McShay recap how the best backs and linemen fared, and Scouts Inc. analyst Steve Muench breaks down the under-the-radar prospects who are rising up draft boards. We'll also look ahead to Day 2 of workouts, as the quarterbacks, receivers and tight ends will participate in testing and drills on Saturday.

Tune in to ABC or the ESPN app at 1 p.m. ET on Saturday to watch our live coverage from the combine in Indianapolis.

How best prospects fared | Biggest risers
What to watch for Saturday

What was the biggest takeaway from workouts?

McShay: This is a better offensive line group than people think, and the interior is the best part. NC State's Garrett Bradbury can get stronger, but he had a really good day. I don't know that any team would theoretically take a center first among the linemen, but he's the most NFL-ready prospect of this group. Erik McCoy's 4.89-second 40-yard dash time was ridiculous. Chris Lindstrom posted a really good 4.91. Washington State's Andre Dillard might have locked himself into the first round with a 4.92. And then Jawaan Taylor had a nice workout. For a massive, mauling tackle, his quick feet are really impressive. This group hasn't gotten the credit it deserves.

Kiper: We still don't know if there will be a first-round running back. Alabama's Josh Jacobs didn't work out because of a groin injury. None of the other backs moved into the first-round discussion. Jacobs is my top-ranked tailback. But he needs to have a good pro day on March 19. Teams will be watching closely.

Muench: Iowa State's David Montgomery and Florida Atlantic's Devin Singletary -- running backs we have ranked among the top 65 overall -- didn't run well and they weren't clean during drills, while other backs had strong showings. Their production and tape speak for themselves, however. Expect both to be productive NFL backs and repay the teams that take them regardless of where they come off the board.

How the top running backs fared

McShay breaks down workouts from Day 1: