Crawford, Warren on first-round bubble

Updated: May 31, 2010, 4:06 PM ET
By Chad Ford

NBA draft boards are still in flux at the moment. With the combine behind us and the first major group workout completed, teams are now moving into individual workouts -- the last stage of a process that began several years ago for most prospects.

Individual workouts afford teams the chance to get up close and personal with players. They get to see prospects go head-to-head with each other, get private interviews and even get to take them out to dinner. It's the equivalent of a final exam for a prospect.

Fail it, and your chances of getting drafted plummet. Ace it, and you might hear that team call your name. We've talked about a number of lottery and mid-first-round prospects for the past week. Right now, based on conversations with a number of NBA GMs, the top 23 players on our Big Board look like first-round locks.

However, another 20 or so players are firmly planted on the dreaded first-round bubble. What they do in the coming workouts will determine whether they get one of those last, coveted, two-year guaranteed contracts or whether they slip into more uncertain territory in the second round.

Here's a closer look at each of those prospects and what they'll have to do to sneak into Round 1.