Senior Bowl practice report, Day 2

By Tony Pauline, Special to SI.com, TFYDraft.com

Derrick Williams displayed speed, effective route-running skills and reliable hands in Tuesday's workout. Stephen Dunn/Getty Images Related Links PAULINE: Senior Bowl practice report, Day 1 ROSTERS: North/South stars at the Senior Bowl

The second day of practice at the Senior Bowl saw an increase in intensity and performance (Day 1 Report). Players are leaving final impressions on NFL decision makers as to their level of skill on the football field. As a result, a number of prospects have cemented better draft grades for themselves heading towards April while others have watched their stock move in the other direction. Here's a look at Tuesday's results.

Risers

Derrick Williams/WR/Penn State: Williams' vaunted athleticism was on display as he established himself as the best receiver on the field. Williams displayed speed, effective route-running skills and reliable hands. He beat defenders for the deep reception or physically beat them down to make the underneath reception. There's no doubt scouts were excited by Williams, who showed signs of pulling it all togher.

Alex Magee/DT/Purdue: Magee was a late arrival to the Senior Bowl after a communications mishap but made up for lost time Tuesday. The Purdue product was impossible to block and consistently got penetration behind the line of scrimmage, beating blockers with quickness as well as power.

Trevor Canfield/OG/Cincinnati: Canfield has a reputation for being a nasty, fierce competitor and he showed why Tuesday. The former Bearcat starter was dominant at the point and handled almost everyone he faced. He's not only strong but also mean; he never let up. More than once he continued to play after the whistle, getting an extra shove in after the play had ended.

Louis Delmas/S/Western Michigan: Delmas has been the best safety on the field and the feisty defender consistently put himself in a position to make plays on the ball all day. He throws his body around the field in an effort to stop ball handlers and delivered a number of blows that made scouts take notice. Delmas was effective in run defense and against the pass.

Coye Francies/CB/San Jose State: Francies is another defensive back whose aggressive play impressed scouts. Francies knocked several defenders to the ground Tuesday with hard hits, which got a loud response from the crowd of approximately 1,000. More importantly he was effective in coverage, displaying top ball skills, which scouts wanted to see.

David Veikune/DE/Hawaii: Veikune has worked hard the past two days and improved his game. The former Warrior was tenacious in run defense and also flew off the edge as a pass rusher. Several of his battles against top-rated left tackle Michael Oher ended up in his favor. In one instance he had the potential first-round pick twisted like a pretzel as Oher failed to protect the quarterback from Veikune's speed.

Peria Jerry/DT/Mississippi: Jerry is standing out to NFL decision makers not only as a football player but also a leader on the field. He has displayed good quickness off the snap and really pushes the pocket as an interior defender. Jerry's ability to shoot gaps and disrupt offenses has been apparent to all at the Senior Bowl.

Alphonso Smith/CB/Wake Forest: The Demon Deacons' corner was yet another defensive back who stood out Tuesday. Smith looked fast, physical and very instinctive all day. He battled against larger receivers and his 5-foot-9-inch frame never backed down. Smith defended a number of passes and played like a starting NFL cornerback.

Sliders

DeAngelo Smith/CB/Cincinnati: Smith possesses the athleticism to play at the next level but was very hesitant and unsure of himself Tuesday. He consistently lost a half step to opponents off the line of scrimmage and gave up several long receptions and an even larger number of underneath routes.

Nathan Brown/QB/Central Arkansas: The small-school passer has struggled so far and done nothing to improve his status in the eyes of NFL decision makers. Brown throws with a three-quarter delivery and the result is poor accuracy and passes that scatter. His inability to throw the deep pass Tuesday resulted in a number of receivers slowing up in their routes and waiting for the ball to arrive.

John Parker Wilson/QB/Alabama: Wilson was another passer who struggled Tuesday. He showed a weak arm and was unable to get speed on passes and under threw a number of receivers who were open down the field. Late in the day Wilson threw a terrible interception into triple coverage.

Herman Johnson/OL/LSU: Johnson has lined up at both his natural position of guard as well as right tackle. His size (6-feet-7, 382 pounds) has not transitioned into the ability to dominate the opposition. Johnson's immobility is obvious to all and at one point he was knocked to the ground due to his inability to move. Much was expected from Johnson this week but he has not responded and his draft stock is plummeting.