Robert Griffin III, Baylor, QB
The Heisman Trophy winner displayed the kind of rare athleticism that will make him one of the fastest quarterbacks in NFL history, clocking a 4.38 and a 4.41 in the 40-yard dash. An All-American hurdler, the speedster offers a different dimension to the game. His athleticism and winning personality aren't surprising traits, but it cements his status as another option for quarterback-needy teams like the Washington Redskins and the Cleveland Browns. Honorable-mention: Stanford quarterback Andrew Luck's relatively dynamic workout.
Matt Kalil, USC, OT
The younger brother of Carolina Panthers Pro Bowl center Ryan Kalil, Kalil exceeded expectations with a respectable 4.99 time at a lean 6-foot-7, 306 pounds. Regarded as the consensus top tackle, he excelled in the three-cone drill and bench pressed 225 pounds 30 times. Kalil fits the bill for a cornerstone left tackle.
Michael Floyd, Notre Dame, WR
Floyd answered questions about his ability to separate from defenders by running in the 4.4 range and gave himself a chance to be the second wide receiver drafted after Oklahoma State's Justin Blackmon. Floyd has prototypical size and seems legitimately contrite about his string of drinking-related incidents. The 49ers would love to see this guy slip to the bottom of the first round, but now it doesn't look like there's much chance of that happening.
Dontari Poe, Memphis, DT
Shockingly mobile for a massive 6-foot-5, 346-pounder, Poe drew favorable comparisons from draft experts to Baltimore Ravens All-Pro defensive tackle Haloti Ngata. His production hasn't coincided yet with these staggering measurables: 4.87 in the 40-yard dash, 9-9 broad jump, 29-inch vertical leap and 44 reps of 225 pounds in the bench press.
Stephen Hill, Georgia Tech, WR
The lanky 6-foot-4, 215-pounder was the hit of the combine, registering eye-popping numbers as the latest imposing downfield target his school has produced as he follows Calvin Johnson and Demaryius Thomas to the NFL. Scouts were drooling about his 4.36 time in the 40-yard dash, an 11-1 broad jump and a 39-inch vertical leap. This guy is an instant matchup problem, but his routes will need polish.
Mychal Kendricks, Cal, LB
Where Kendricks lacks ideal stature at 5-foot-11, 239 pounds, he packs in plenty of power and speed. Kendricks managed to run a 4.41, faster than many running backs, and also registered a 39-inch vertical leap. He's also known as a high-character, productive individual with strong leadership qualities.
Cordy Glenn, Georgia, OT
Glenn is a road grader of a blocker at 6-foot-6, 345 pounds who entrenched himself in the first round by proving he's swift enough to play either right tackle or guard. His unofficial 4.96 in the 40-yard dash was totally unexpected. The Senior Bowl standout also turned in a 1.76 10-yard split and bench pressed 225 pounds 31 times.
Nick Perry, USC, OLB-DE
A hybrid edge pass rusher, Perry looks like a sound fit for either the 3-4 or 4-3 defense with his speed (4.50, 4.56 times), explosiveness (38 ? inch vertical leap, 10-4 broad jump), strength (35 bench press reps) and obvious pass rushing skills. He's going to make some NFL defensive coordinator very happy.
Zach Brown, North Carolina, LB
A former track star that set a school track record in the 60 meters, Brown possesses a quality that can't be taught: pure speed. He ran in the 4.4 range unofficially, clocking an official 4.50. NFL scouts are intrigued about his potential as a weakside linebacker capable of shutting down fast backs in the open field.
Luke Kuechly, Boston College, LB
A tackling machine with 532 career tackles, Kuechly proved he has qualities beyond being tough, instinctive and smart. He's also a good athlete, running the 40-yard dash in 4.50 seconds and recording a 38-inch vertical leap. He looks like an immediate starter and impact player who shapes up as a future team captain.
Vontaze Burfict, Arizona State, LB
It was a disastrous, self-destructive combine for him as he ran a sluggish 5.09 slower than many offensive lineman. His time was topped by 36 of 48 defensive lineman, including 346-pound Memphis tackle Dontari Poe. Burfict's lack of discipline is well-documented as far as personal fouls, blaming coaches and an infamous locker room fight. Once regarded as a first-round prospect, he's now slipping down to the third or fourth round at least.
Alshon Jeffery, South Carolina, WR
Yes, the rumors about his supposedly ballooning weight were untrue. He was actually down to 216 pounds from 229 pounds, not up to 240 pounds. That's a positive, but NFL teams were disappointed that he didn't run the 40-yard dash and wondered if he lost weight the right way. Now, his Pro Day workout becomes a pivotal moment for his draft status.
Michael Brockers, LSU, DT
It was an extremely poor showing that didn't live up to the buzz that surrounded this hulking defensive lineman prior to the combine. Big and long-armed, Brockers finished tied for last among all defensive linemen in the bench press with 19 reps. He also ran an alarmingly slow 5.36 in the 40-yard dash with a 26-inch vertical leap and a 4.81 short shuttle, raising red flags for a one-year starter. Brockers is still a first-round target.
Kendall Wright, Baylor, WR
Wright likely scuttled his first-round chances with a 4.61 in the 40-yard dash, much slower than anticipated. Although the smallish 5-10, 196-pounder caught 108 passes for 1,663 yards and 14 touchdowns last season, his leaping ability (38 ? inch vertical leap, 10-1 broad jump) doesn't make up for his lack of ideal speed. He'll need to improve his stock in private workouts and at the Baylor Pro Day where every NFL team will assemble to watch Robert Griffin III put on a show.
Peter Konz, Wisconsin, C
Konz is still graded as the top center, but might have to wait a while to hear his name called in the first round. The 6-foot-5, 316-pounder only bench pressed 225 pounds 18 times and didn't work out due to an ankle injury. He'll have some ground to make up at his campus Pro Day workout, but teams are still enamored of a blocker who draws favorable comparisons to Baltimore Ravens six-time Pro Bowl center Matt Birk.
Rueben Randle, LSU, WR
Randle ran far slower than expected with a 4.55 showing and only registered a 31-inch vertical leap. It's questionable whether he's worthy of late first-round consideration. His saving grace at the combine: sound hands and smooth routes. He aced the gauntlet drill.
Sean Spence, Miami, LB
Spence is a smaller defender who has strong safety size at 5-foot-11, 231 pounds. However, he definitely needs to hit the weight room. He bench pressed 225 pounds only 12 times and ran slower than expected with a 4.71 in the 40-yard dash. The second round seems like a stretch for him now.
Janoris Jenkins, North Alabama, CB
Jenkins' workout numbers and talent aren't in question, and he drew praise for his candor. However, some NFL teams are going to downgrade him for his three arrests for possession of marijuana and a bar fight and will wonder if he'll be distracted by having to support his four children. Someone will pick him in the first round, though.
Mike Adams, Ohio State, OT
Other than Vontaze Burfict, Adams may have inflicted the most damage on himself at combine. He lived down to his reputation as not being a very hard worker, bench pressing 225 pounds 19 times and running a 5.4 in the 40-yard dash. He was already facing serious scrutiny due to his suspensions for receiving extra benefits and violating team rules as well as a citation for misdemeanor possession of drug paraphernalia that was later dropped. It's time for Adams to show he's serious about football.