Tuesday was a long day of football in Mobile for the first real day of Senior Bowl work. The festivities kicked off at 8:30 AM with the weigh-in.

It’s one of the most ridiculous spectacles. Over 1,000 grown men are gazing at about 120 NFL prospects parading in their Under Armour underwear to get weighed and measured. You can find the full results in several other locales (I recommend Optimum Scouting).

Some of the more intriguing measurement and physiques, and how they fared on the first day of practice…

Cincinnati ILB Jeff Luc was absolutely rocked up. He’s just a hair under 5’11” but a very muscular 263 pounds. He was stiff in coverage and movement drills in North practice, including one rep in coverage where he flat-out tackled Ameer Abdullah. I’ve scouted the hard-hitting Luc as a 3-4 ILB who needs to come off the field in passing downs, but his physicality can be an asset against the run and on special teams.

Miami OH CB Quinten Rollins measured at just 5’11” and 190, both well below his listed specs with the Redhawks. He was quite good in press drills but tentative and lacking instincts in the other passing drills. Keep in mind he was Miami’s point guard and a master thief on the hardwood, but this is just his first year of college football. It showed on the practice field, but he’s still got very high potential and a lot of buzz with scouts.

One of the best-looking humans I’ve ever seen is Tyler Varga, an absolutely shredded RB/FB from Yale. I’ve yet to see any game film and he didn’t stand out positive or negative in drills today, but that is one impressive physical specimen. He’s the guy at the gym the other guys at the gym want to be.

Stanford WR/KR Ty Montgomery was also quite physically impressive at just under 6’ and a muscular 216 pounds. He’s clearly got straight-line speed too, but there is very little polish or urgency to his route running. He struggled catching any throw that wasn’t going to hit him in the chest and doesn’t adjust well to the ball in the air.

Duke WR Jamison Crowder is tiny at 5’8” but he really showed both quickness and speed in drills. He’s natural at setting up an inside release and turning around the defensive back, as he did to Rollins on one rep.

Washington DT Danny Shelton pumped his fist in joy when his weight was announced at 343. I heard from a credible source he played the Huskies’ bowl game at 362, and he looked sloppy. Weight fluctuation has always been an issue. However, he was almost universally cited as a big “winner” in polling the folks who watched the OL/DL battles (I’ll do that tomorrow when they’re in full pads).

Michigan State RB Jeremy Langford was a well-built 211 pounds and 5’11”. He was excellent in passing drills throughout North practice. Langford is intent on proving he can do more in the passing game, something he did not do much of for the Spartans.

Auburn’s Nick Marshall was impressive at 6’0.5” and 205 pounds. Yet the bigger news is that Marshall is no longer a quarterback. He is transitioning to cornerback for the South team. The initial returns were not positive, but given it’s his first day that isn’t too surprising. He’s well-liked by his peers. He also has a large, colorful tattoo across his back.

Clemson DT Grady Jarrett is a complete tweener at 6’ and 288 pounds. He’s functionally strong and has a quick first step, but it’s hard for guys that light to play 4-3 DT and equally as difficult for guys his height to play 5-techinque in a 3-4.

Central Florida safety Clayton Geathers is a big man at 6’1” and 212 pounds. He’s got small hands for his height, and that showed in passing drills where he really battled catching the ball. His hips were looser (that’s a positive) than I anticipated, and he did a good job forcing outside release when that was the goal of the drill.

Auburn WR Sammie Coates certainly looks the part. He’s a specimen at 6’1” and 206 but appears both taller and thicker. Coates flashed the vertical speed on several reps, though the lack of chemistry with the QBs (notably Garrett Grayson, the best here) prevented some big catches. As was quite evident at Auburn, he struggles to track the deeper throws. It’s a similar issue to Alshon Jeffery when he was at South Carolina and he improved, so there is certainly hope for Coates, a fringe 1st-round pick.

Samford safety Jaquiski Tartt is huge at 220 pounds and just under 6’2”. He was the star of the passing drills in South practice too. Tartt showed range, vision and quick closing burst. He also caught the ball naturally. There isn’t a lot of available game tape but what little I’ve seen was pretty impressive too. He’s a definite riser and at his size he could be a surprise top 50 pick. He’s a much better football player than Mike Mitchell, who stunned the world by going that high as a similar physical marvel of a safety.

Kansas State WR Tyler Lockett--a personal favorite--measured shorter and lighter than expected at just 5’9.5” and 181. His hands are also small, and body-catching is a legit knock on him which reared its ugly head in South practice too. Yet he’s absolutely electric off the line, easily the best route runner on either squad. There is no wasted movement and he’s incredibly slippery to try and jam.

Random Notes:

Texans coach Bill O’Brien and Eagles coach Chip Kelly had a long conversation in South practice that began with the two of them mocking the scouting strategy and disconnection between coaching and scouting of another team. The team in question is not a division rival of either.

Louisiana-Monroe’s Justin Manton is both the punter and kicker for the South. He was booming punts all over Fairhope Stadium, impressing the onlookers who included O’Brien and Packers GM Ted Thompson, who was trying to talk to Manton between reps. I didn’t watch every field goal but he was dead solid perfect on all that I did.

With Marshall switching to corner, he will be replaced by Southeast Louisiana QB Bryan Bennett. It’s a good chance for Bennett, an Oregon transfer after he couldn’t beat out Marcus Mariota, to show what he can do on a bigger stage.