Todd McShay's updated Top 32: Ranking 2018 NFL draft prospects

With the Senior Bowl and NFL combine in the rearview mirror, our prospect evaluations are starting to take shape.

We'll continue to update our board as we get closer to the 2018 NFL draft and complete our evaluations. Although some players will move into the rankings and others will drop out, this provides a good snapshot of which players currently have the most NFL potential, based on our evaluations.

Here are the top 32 prospects right now, along with a ranking of the top 10 prospects by position:

Note: Underclassmen marked with asterisks.

1. Saquon Barkley, RB, Penn State*

Grade: 97 | Previous rank: 1

Barkley was the best running back in the nation last season, racking up more than 1,200 yards on 5.9 yards per carry and 18 rushing touchdowns despite regularly facing eight and nine men in the box. Barkley has a distinctive combination of size, agility and power; there just aren't many 233-pound backs with his feet and acceleration. Barkley is also a three-down back, with solid hands as a receiver and above-average blocking skills in pass protection. Making it an even easier evaluation is the fact that Barkley is a driven competitor with very good leadership skills and no off-the-field issues. He checked all the boxes at the combine, as well.

2. Quenton Nelson, G, Notre Dame*

Grade: 95 | Previous rank: 9

Nelson is a road grader with the size (6-foot-5, 325 pounds), strength, polish and toughness to start immediately in the NFL. He seems like one of the safer prospects at this point and appears a lock to go in the top 10.