Jefferson on football knowledge

Cornerback AJ Parker talks about the growth he sees in himself under defensive coordinator Aaron Glenn and defensive backs coach Aubrey Pleasant.

Defensive end Levi Onwuzurike talks about enjoying his football and having fun with his friends during training camp.

Inside linebackers coach Mark DeLeone talks about what he's seen from his young linebackers throughout training camp and the first preseason game.

Wide receiver Tom Kennedy talks about playing in the first preseason game of the year and what the atmosphere was like on the field.

Check out the sights and sounds from head coach Dan Campbell as he is mic'd up during Lions training camp 2021.

Linebacker Derrick Barnes talks about not being fully healthy at the start of training camp and how he continued to learn and develop during that time.

Cornerback Nickell Robey-Coleman talks about why he signed with the Lions and his first impressions of cornerback Jeff Okudah.

Outside linebacker Austin Bryant talks about how he spent his first healthy offseason and the meaning his Kobe Bryant tattoo.

Wide receivers coach Antwaan Randle El talks about noticing improvements in his receivers room and how he would beat defensive coordinator Aaron Glenn in a one on one rep.

Head coach Dan Campbell talks about being pleased with the team's workouts this week, getting ready for the first preseason game, and his old job working at a chicken shack.

Check out the sights and sounds from running backs coach and assistant head coach Duce Staley's mic'd up practice during Lions training camp 2021.

Tight end Alize Mack talks about doing whatever is asked of him and trying to make each rep count during training camp.

Fullback Jason Cabinda talks about his development as a fullback and how he makes the most out of every opportunity given to him.

Outside linebackers coach Kelvin Sheppard talks about how he found his way into coaching and his relationships with players he used to be teammates with.

Head coach Dan Campbell talks about the necessity of having gritty players on his roster and how they impact everyone around them.

Check out the sights and sounds from running back Jamaal Williams' mic'd up practice during Lions training camp 2021.

Defensive line coach Todd Wash talks about challenging his defensive line and some new additions to his room.

Head coach Dan Campbell talks about what he has seen from his players so far during training camp and what he is looking for leading up to the first preseason games.

NFL Commissioner Roger Goodell talks with team reporter Dannie Rogers at Lions Family Fest.

Wide receiver Amon-Ra St. Brown talks about stepping up in place of injured wide receivers and getting playing time with the first team.

Tight end Darren Fells talks about stepping up in place of injured players and how strong he thinks the tight end room is.

Watch highlights from the fifth and sixth practices of 2021 Detroit Lions Training Camp presented by Rocket Mortgage.

Former Detroit Lion T.J. Lang talks with Team Reporter Dannie Rogers on being named 97.1 sideline reporter.

Guard Halapoulivaati Vaitai talks about playing through injuries last season and how excited he is for a strong offensive line this year.

Outside linebacker Julian Okwara talks about trying to improve at least one percent each day and how happy he is with his role in this defense.