The weigh-ins are an important part of Senior Bowl week and really kick off the discussion of where players fit at positions in the NFL. Like every year, there were players who definitely "won" the weigh-in while other prospects were shown to be smaller than their listed size. 

They measure height, weight, hand size, arm length, and wingspan. There are certain thresholds for certain positions that scouts and teams like to see. It can be a red flag if for example if an offensive tackle doesn't have 33" arms or longer, or if a wide receiver doesn't have 9" hands or bigger. 

Below is a list of a few players from each roster who impressed the on-lookers today as well as some that left them scratching their heads.

North Winners

Carson Wentz, QB, North Dakota St.- 6'5, 233lbs, 10" hands, 32 3/8" arm length, 78" wingspan. Wentz could be the first quarterback off the board come May and be drafted as early as pick 2 to Cleveland. Wentz is as big as he was listed but what is going to please scouts is that his hands checked in at 10". Cold weather teams prefer QB's with bigger hands to help with grip and at 233lbs Wentz also shows he has the body type to withstand a few hits.

Jason Spriggs, OT, Indiana- 6'6, 301lbs, 9 1/2" hands, 34 1/8" arm length, 81 3/8" wingspan. Spriggs is a former TE who eventaully moved to offensive tackle for the Hoosiers and has been very steady on the blind side. Spriggs checking in with over 34" long arm bodes well for him. With his footwork, teams will more than likely view him as a capable starting tackle in the NFL. With a strong week of practices he he could hear his name called in the first round.

Vernon Butler, DT, Lousianna Tech- 6'4, 325lbs, 9 3/4" hands, 34 1/8" arm length, 83 1/2" wingspan. Butler is one of the more underrated prospects but that's expected to change once he competes with the big boys down in Mobile. With Butler's height and weight he can play just about any position on the defensive line including nose tackle and defensive end in the Packers' 3-4. With over 34" long arms he can extend them to seperate from blockers to keep himself clean and make plays off his frame.

Honorable Mentions: Austin Johnson, DT Penn St.; Joshua Perry, ILB, Ohio St.; Kyler Fackrell, OLB, Utah St; Nick Vannett, TE, Ohio St. 

North Losers

Aaron Burbridge, WR, Michigan St- 6', 210lbs, 8" hands, 34 1/4" arm length, 73 3/4" wingspan. Burbridge was a really consistent weapon for the Spartans this year but NFL teams will be red flagging him for his 8" hands. Burbridge didn't have much trouble with catching the ball but some teams will still shy away from him early in the draft. There have been successful wide receivers in the NFL with less than ideal hand size but the majority of the really good ones have over 9" hands. Burbridge could prove to be a steal late in the draft for a team willing to take a bit of a gamble.

Sheldon Day, DT, Notre Dame- 6', 283lbs, 9 3/8" hands, 32 7/8" arm length, 78 3/4" wingspan. Sheldon Day may be a man without a position in the NFL. Teams are going to have a hard time figuring out if he's a defensive tackle or a defensive end and in which defensive front he fits best. He's been a successful 3-4 defensive end for the Irish but at just over 6' and 283lbs he may not hold up there in the NFL. His draft stock is in the late day 2 range.

Tyler Matakevich, ILB, Temple- 6', 233lbs, 9 5/8" hands, 30 7/8" arm length, 75 5/8" wingspan. Matakevich checked in a bit undersized for what his game is best suited for in the NFL. Matakeviich is a try-hard type of player always around the football but lacks elite athletiscim. At only 233lbs he is lighter than you'd want and with less than 31" long arms he may have a hard time stacking and shedding blocks at the next level. Matakevich was always a later round linebacker prospect and he'll need a good week to boost himself up draft boards.

Honroable Mentions: Joe Schobert LB, Wisconsin (arm length), Kyle Murphy, OT, Stanford (arm length), Tajae Sharpe, WR, Umass (hand size)

South Winners

Le'Raven Clark, OT, Texas Tech- 6'6, 312lbs, 10 7/8" hands, 36 1/4" arm length, 85 7/8" wingspan. Clark was the clear winner overall at the weigh-ins. He had the longest arms of any prospect to go along with almost 11" hands. Clark has the perfect pysique for an NFL offensive tackle. Clark will have to back up the buzz he created standing on stage by showing up on the field. Clark has some inconsistencies on tape but coaches will love to mold him. With a good week, Clark can work his way up into 1st round consideration.

Jonathan Williams, RB, Arkansas- 5'11, 219lbs, 10" hands, 30 3/4" arm length, 76 7/8" wingspan. Williams is under the radar after missing this past season due to iunjury but he checks all the boxes teams look for in a running back. Compact frame with a thick lower half shows teams he could carry the ball 15+ times a game. With 10" hands it should help with catching and ball security. Williams's test will be trying to show teams there are no lingering effects from his injury.

Jordan Jenkins, OLB, Georgia- 6'3, 257lbs, 11" hands, 34" arm length, 82 1/2" wingspan. Jenkins impressed at the weigh-ins looking very chisled with long arms and big hands. Jenkins has a great build to be an OLB in a 3-4 defense which is what he played at Georgia. Jenkins is the less talked about pass rusher at Georgia (Leonard Floyd) but is arguably the better pure pass rusher. If Jenkins shows that he can use his length this week he can cement his stock as a day 2 player.

Honroable Mentions: Vadal Alexander, OT, LSU; Shawn Oakman, DE, Baylor; Josh Forrest, ILB, Kentucky, Dadi Nicolas, OLB, Virginia Tech

South Losers

Eric Striker, LB, Oklahoma- 5'11, 228lbs, 10" hands, 31" arm length, 74" wingspan. Striker was always going to be a difficult projection to the NFL because of his lack of size and checking in at under 6' and less than 230lbs reinforces that beleif. Striker will have to show teams he can play in space as an off the ball linebacker who can occasionally blitz. Striker isn't long enough to hold up consistently on the edge which is where he played in college.

Sterling Shepard, WR, Oklahoma- 5'10, 193lbs, 9 1/8" hands, 30 1/4" arm length, 71 1/4" wingspan. It pains me to put Shepard on this list because he is an incredibly gifted wide reciever but at just 5'10 less than 200lbs Shepard will more than likely be viewed as a slot reeciver only in the NFL. That could hurt his stock some as it's precieved easier to find slot reecivers than it is outside guys. Shepard's short arms and small wingspan won't help either as he faces longer, bigger cornerbacks in the NFL. 

Deion Jones, ILB, LSU- 6'1, 219lbs, 8 5/8" hands, 32 1/2" arm length, 77 7/8" wingspan. Jones plays like an undersized linebacker who really flew around the football field for the Tigers, but checking in at less than 220lbs is going to potentially scare teams away. At that size he is essentially a big safety playing in the box. Jones will more than likely have to find a home as a outside linebacker in a 4-3 defense so he can play in space. 

Honroable Mentions: Reggie Ragland, ILB, Alabama (weight); Spencer Drango, OT, Baylor (arm length); Brandon Allen, Arkansas, (hand size)

Cody Bauer is an NFL Draft  features writer for CheeseheadTV. You can follow him on twitter https://twitter.com/CBauerNFLDraft