Here is a look at how our NFL Draft Scout's top 12 prospects performed at the Scouting Combine. The numbers here are official and were given to Packer Report by an NFL scout. (Note: Figures listed as "NA" mean the player skipped that drill at the Combine.)
Darqueze Dennard, Michigan State
Height: 5107. Weight: 199. Arm length: 30 1/4. 40 time: 4.51. Vertical jump: NA.
Comment: Barring a trade up in the first round, Dennard probably will be long gone by the time the Packers are on the clock at No. 21. Dennard won the Jim Thorpe Award as the nation's top cornerback and was a consensus All-American with his four interceptions. His testing numbers weren't bad; they just weren't great.
Justin Gilbert, Oklahoma State
Height: 6001. Weight: 202. Arm length: 33 1/8. 40 time: 4.37. Vertical jump: 35 1/2.
Comment: Gilbert arguably tested better than any cornerback at the Combine. Not only does he have length and speed, but he tied for third among corners on the bench with 20 reps. With seven interceptions as a senior and six career touchdowns on kickoff returns, he'd be a serious consideration if still on the board in the first round. The key word there is "if." His hands, however, were among the smallest of any player at the Combine, if you're into nit-picking.
Lamarcus Joyner, Florida State
Height: 5080. Weight: 184. Arm length: 31 1/2. 40 time: 4.55. Vertical jump: 37 1/2.
Comment: Joyner almost certainly is off the Packers' board because of his height.
Jason Verrett, TCU
Height: 5094. Weight: 189. Arm length: 30 5/8. 40 time: 4.38. Vertical jump: 39.
Comment: The Packers' history suggests they wouldn't draft a cornerback with Verrett's height. Their shortest cornerback is Sam Shields, who is 5-foot-10 3/4.
Bradley Roby, Ohio State
Height: 5112. Weight: 194. Arm length: 31 1/2. 40 time: 4.39. Vertical jump: 38 1/2.
Comment: Roby tested well at the Combine but he's not that tall and he's not that long. He led the nation in passes defensed as a sophomore but had an up-and-down junior season before entering the draft.
Kyle Fuller, Virginia Tech
Height: 5116. Weight: 190. Arm length: 32 7/8. 40 time: 4.49. Vertical jump: 38 1/2.
Comment: Football is in Fuller's DNA. Vincent Fuller intercepted six passes in seven NFL seasons, Corey Fuller was drafted as a receiver by Detroit last year and younger brother Kendall Fuller started at cornerback for Virginia Tech as a freshman this past season. Kyle Fuller was an All-American and all-conference performer despite missing four games with a sports hernia. He'd be an option at No. 21.
Marcus Roberson, Florida
Height: 6002. Weight: 191. Arm length: 31. 40 time: 4.61. Vertical jump: 37 1/2.
Pierre Desir, Lindenwood
Height: 6010. Weight: 198. Arm length: 33. 40 time: 4.59. Vertical jump: 35.
Comment: Desir is the best small-school prospect in the draft, regardless of position. He's tall and long, though his testing numbers are cause for concern. In four seasons, he intercepted 25 passes. He spent his final two years at Lindenwood, earning NAIA All-American honors both seasons. Desir won the Cliff Harris Award as the nation's top small-school defender.
Jaylen Watkins, Florida
Height: 5114. Weight: 198. Arm length: 30 5/8. 40 time: 4.41. Vertical jump: NA.
Comment: Watkins is the brother of Clemson star Sammy Watkins, who figures to be the first receiver off the board. Jaylen Watkins, who played corner and safety as a senior and performed well at corner at the Senior Bowl, led the cornerbacks with 22 reps on the bench and was among the fastest in his second 40 after running 4.54 in his first attempt.
Bashaud Breeland, Clemson
Height: 5113. Weight: 197. Arm length: 31 3/4. 40 time: 4.62. Vertical jump: 34 1/2.
Comment: Breeland's draft stock took a hit with below-average results in the 40 and vertical. He intercepted four passes as a senior and was third-team all-conference.
Stanley Jean-Baptiste, Nebraska
Height: 6025. Weight: 218. Arm length: 32 3/8. 40 time: 4.61. Vertical jump: 41.5.
Comment: Jean-Baptiste draws the inevitable comparisons to Seattle's Richard Sherman due to his height, length and receiver-to-cornerback background. His vertical was the second-highest at the Combine, regardless of position. He tallied four interceptions as a senior.
Keith McGill, Utah
Height: 6033. Weight: 211. Arm length: 33 1/4. 40 time: 4.51. Vertical jump: 39.
Comment: McGill is the tallest cornerback in the draft, and his length and vertical (tied for third among corners) make him an imposing man in coverage. Seattle's success with its tall defensive backs certainly will boost McGill's draft stock. However, he missed most of 2011 and 2012 with injuries, then had only one interception as a senior.
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Bill Huber is publisher of Packer Report magazine and PackerReport.com and has written for Packer Report since 1997. E-mail him at firstname.lastname@example.org, or leave him a question in Packer Report's subscribers-only Packers Pro Club forum. Find Bill on Twitter at twitter.com/PackerReport.