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MOBILE, Al. –** The final day of practice from the 2015 Senior Bowl is now in the books and all that's left is to play the game itself. Overall, a good number of defensive linemen really improved their stock and it was a pair of tight ends and cornerbacks who impressed on Thursday. Here are the risers and sliders from the last day of padded practice.

Risers

Laken Tomlinson/G/Duke – Tomlinson has not dominated this week but, at the same time, he's not been beaten and has impressed scouts with disciplined play. Tomlinson blocks with great fundamentals and did not give up an inch to defenders in either drills or scrimmage. He's moved from late-round prospect into the middle frames.

Clive Walford/TE/Miami – There was a lot to like about Walford's performance the past two days. He's been very consistent as both a blocker and pass catcher, handling defenders at the line of scrimmage as well as making receptions down the seam. He's not a true vertical threat rather Walford possesses the skills necessary to be dependable in all areas of the tight end position for years to come.

Nick Boyle/TE/Delaware – Boyle was solid all week yet saved his best for the final practice. He was dominant blocking during the entire session on Thursday besides making several nice receptions down the sidelines. He's not a true downfield threat but has proven himself to be reliable in all aspects of the position. Most feel Boyle will have a long career as a No. 2 tight end in the NFL.

Cody Prewitt/S/Mississippi – Prewitt came to Mobile and ended the notion that he's a run-defending safety who struggles in coverage. Today, he made several nice plays on passes including an interception in the end zone as well as a break-up in the middle of the field. Prewitt's solid play in coverage the past few days will enhance his draft stock.

Quandre Diggs/CB/Texas – Diggs made few mistakes during the start of the week then upped his game on Thursday. He made a terrific play picking off a Bryce Petty pass at the start of Thursday's practice then finished the session with a monstrous hit in scrimmage which drew praise from both scouts and fans. Diggs does not possess classic measurable, but showed enough skill this week to get late-round consideration.

David Cobb/RB/Minnesota – Teammates Ameer Abdullah and Tyler Varga stole the show in the opening practices but today Cobb stepped to the forefront. His vision, instincts and ability to immediately find the running lanes were impressive as was Cobb's pass-catching out of the backfield. Cobb is more of a one-speed ball carrier with a minimal burst but his versatility to perform multiple tasks at the running back spot is impressive.

Arie Kouandjio/G/Alabama – Kouandjio battled hard during Thursday's practice and won out on just about every snap he took. He blocked with great fundamentals, showed a lot of strength in his game and controlled opponents on the line of scrimmage. Scouts praised Kouandjio after practice as many feel he's solidified his status as a middle-round choice.

Imoan Claiborne/CB/Northwestern State – Claiborne's performance from Wednesday should not go without mention. The feisty, small-school corner played tough, smart football and shut down the talented rivals he faced on a number of occasions. He stayed with opponents out of breaks, quickly located the pass and showed a burst to the ball. Overall, scouts had to be impressed with the attitude Claiborne played with as well as his results.

Sliders

Bryce Petty/QB/Baylor – Thus far, Petty has proven that he's little more than a product of Baylor's high-octane passing offense and has struggled to make scouts believe he offers legitimate NFL talent. He never distinguished himself above the group of mediocre quarterbacks on the North squad and finished his week of Senior Bowl practices by throwing a pair of interceptions on Thursday.

Blake Sims/QB/Alabama – The first-year starter from Alabama is a terrific athlete but proved he's not a great passer. His accuracy was questionable all week as were many of his reads and decisions. Sims was effective rolling outside the pocket then throwing on the move and showed ability picking up yardage with his feet. Teams must now decide if he's worth developing at quarterback or whether Sims revert back to his original position of running back.