The first day of Senior Bowl practices kicked off Tuesday at Hancock Whitney Stadium in Mobile, Alabama. The weather was beautiful, mostly sunny with temperatures hitting close to 60 degrees during the second practice.

Here's what I saw from the sideline. As always, opinions are my own.

* The National Team, coached by Mike Kafka, practiced first. It was a very active practice with a live nine-on-seven (a run defense drills with no CBs or WRs on the field) and plenty of full-speed one on one and team drills. I focused on the offensive and defensive lines during this practice.

* Marshall's Mike Green (6-3, 251, 32.25-inch arms) was the edge rusher with the most juice. He was able to use his burst off the line to get to the outside shoulder of the offensive tackle, and his bend to get under and around the tackle before turning the corner to get to the quarterback. He also showed power during the nine-on-seven drills, moving his opponent into the backfield at the snap on at least one occasion.

* Three other edge rushers caught my attention. UCLA's Oladejo Oluwafemi (6-3, 261, 33.5-inch arms) got up-field and was difficult to block on the edge during one-on-one drills. Boston College's Donovan Ezeiruaku (6-2, 248, 34.5-inch arms) had some wins rushing against offensive tackles. Michigan's Josaiah Stewart is a bit undersized (6-1, 248, 32.75-inch arms), but he plays with good power and leverage with the speed to get up field.

* Virginia Tech defensive tackle Aeneas Peebles (6-0, 289, 31.75-inch arms) is short but thick and plays with excellent leverage. Iowa's Yahya Black (6-5.5, 337, 35-inch arms) flashed his enormous physical skillset but didn't win consistently. Both players were very vocal and let everyone know when they did make plays.

* The offensive line for the National Team had standouts. Oregon offensive tackle Josh Conerly Jr. (6-4, 313, 34-inch arms) was impressive and held up well at left tackle. Minnesota's Aireontae Ersery (6-5.75, 339, 34-inch arms) was dominant at left tackle showing off his strength with his power overwhelming his opponents. He also handled speed rushes well getting to the edge. Purdue offensive tackle Marcus Mbow (6-4, 301, 33-inch arms) played right tackle and showed off his excellent feet by getting to the perimeter to prevent his opponent from getting into the backfield.

* North Dakota State offensive lineman Gray Zabel (6-1, 316, 32.25-inch arms) was the player that drew my attention the most from the offensive line group. A tackle as a Bison, Zabel played both guard positions and center Tuesday and excelled at all three spots on different reps with power and the good movement skills he used as a tackle and North Dakota State.

* The American practice slowly built up its pace as the session went on. The quarterbacks struggled to find timing with their receivers, which is to be expected since it is the first time they are throwing to them. Jaxson Dart seemed the most decisive of the quarterbacks in the second practice, while Dillon Gabriel threw the ball well in the first. Gabriel measured in at 5-10.5 and 202 pounds. Jalen Milroe measured at 6-1.5, 220 pounds with 8.75-inch hands.

* Maryland's Tai Felton was the top wide receiver on the field for the American Team (whose offensive coordinator is Giants running backs coach Joel Thomas) and showed the ability to use his speed and size to separate from opponents and make catches down the field. TCU's Jack Bech (6-1, 214) made a jumping catch during practice.

* Two cornerbacks grabbed interceptions during American practice, including UCF's Brandon Adams. Billy Bowman Jr. made a great play later in practice, jumping in front of a late throw on a quick out to the right side and coming down with the interception.

* Kentucky's Maxwell Hairston had a pair of pass break-ups as did Kansas State's Jacob Parrish. The diminutive Upton Stoute (5-8) also proved to be sticky in coverage.

* Throughout team drills, Kentucky's Deone Walker and Omar Norman-Lott often found themselves in the backfield.

* Both teams finished their practices with one-on-one competitions in front of the entire team. For the American team:

Upton Stout and safety Dante Trader Jr. played good coverage preventing catches.

Running back RJ Harvey proved impossible to cover coming out of the backfield.

LSU guard Miles Frazier held his own against defensive tackle Cam'Ron Jackson.

Small school guard Clay Webb from Jacksonville State somehow managed to hold off massive Kentucky defensive tackle Deone Walker.

Small school Alabama A&M guard Carson Vinson rode Texas A&M edge rusher down the line on an inside spin move to win the day for the offense.

For the National Team:

Josh Conerly Jr shut down the rush of Oladejo Oluwafemi.

Michigan running back Donovon Edwards beat linebacker Jeffrey Bassa on a flag route but couldn't come up with the catch on a flag route.

Miami wideout Xavier Restrepo tripped coming out his break against cornerback Quincy Riley.

Miami tight end Elijah Arroyo continued to impress by getting a lot of separation against Illinois State safety Keondre Jackson for a long completion.

Quincy Riley won the day for the defense knocking away a pass from Iowa State wide receiver Jayden Higgins on a back shoulder throw.

I'll swap position groups for tomorrow's practice and have the report for you in the evening.