Currently, all the defensive backs are running their 40-yard dashes at the NFL Scouting Combine in Indianapolis and two of the highest rated players, Florida's Joe Haden and Tenessee's Eric Berry, each had an up and a down in their runs.
Berry, who is very confident and told media that he is the No. 1 overall rated player in the entire draft, looked fast and fluid running his 40-yard dash with an impressive official time of 4.47.
His vertical leap was also measured at 43 inches.
Standing at an impressive size of 5'11 1/2" and 211 pounds, Berry has been compared to Ravens All-Pro safety Ed Reed.
Expecting to have an immediate impact in 2010 at safety, Berry also told the media during his interviews that he would rather make a play intercepting a pass rather than making the big hit.
Berry showed that he has good upper body strength too, managing 19 reps in the bench press and showed smooth hips when changing direction in the field drills—even Deion Sanders managed to let out a "wow" while watching Berry live.
Haden on the other hand, who is the top cornerback, ran a very disappointing 40-yard dash time with an official 4.57.
Even though a 4.57 is still considered pretty fast, a cornerback needs to run as close to 4.4 as possible because they need speed at their position to be able to run with wide receivers, and recovery speed in the secondary is important as well.
Haden disappointed in his vertical leaping ability too, only jumping 35 inches.
Berry is proving that he is indeed a top 10 pick, but Haden may fall down in the first round now.
A quick side note: Wake Forest cornerback Brandon Ghee ran an official time of 4.45 and his stock will jump because of his speed.
Only half of the defensive backs have run their 40s since they are now running field drills, but notable backs who still have to run are safeties Taylor Mays, Myron Rolle, and Earl Thomas.
(Daniel Wolf is exclusively covering the NFL Scouting Combine for Bleacher Report.)