Hall of Fame observer: Hall of Fame linebacker and former NFL head coach Mike Singletary took in Lions minicamp practice Thursday. He is currently coaching the Memphis franchise of the Alliance of American Football. Singletary said he was in Allen Park because he wanted to get a look at the setup of practice and how Patricia utilizes the big screens at practice as an immediate teaching tool. He said he liked the way Patricia ran a throwback type of practice, and the way he's trying to change the culture here in Detroit. – *Tim Twentyman

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Running:It was back as a post-practice conditioning tool after an absence in recent seasons. Gassers – sideline to sideline sprints – were run after Thursday's practice. Gassers were a staple a couple decades ago. – Mike O'Hara

7-on-7: The first-team offense got off to a quick start against the first-team defense in the first red zone 7-on-7 period. Golden Tate kicked off the session with a touchdown vs. slot corner Jamal Agnew. Then Kenny Golladay beat Agnew to the corner for the score. Golladay scored again on the next play with Teez Tabor covering. Michael Roberts made it 4-for-4 for the offense with a touchdown grab against linebacker Jonathan Freeny. The defense won the last two reps stopping Theo Riddick short of the goal line and forcing an incompletion to Marvin Jones Jr. – Tim Twentyman

Pick time: Rookie defensive back Tracy Walker III made a nice impression on the last day of minicamp with an interception on a pass thrown by Jake Rudock. There might have been a miscommunication on the play. There wasn't a receiver in the area where Walker made the interception. – Mike O'Hara

Injury report: Agnew looked to tweak his left hamstring area in the middle of practice. He never left the field, but didn't do much after the injury. He ran with his teammates after practice but wasn't running hard. – Tim Twentyman

Acrobatic flip:It wasn't done on purpose or to get attention, but rookie linebacker Chad Meredith of Southern Missouri did a flying cartwheel in a coverage drill. A tight end who slipped and fell in front of Meredith took his legs out from under him. Meredith did a flying flip, and got up unhurt. – Mike O'Hara

Early order of things: So much has been written about Frank Ragnow and the first-team offensive line, for obvious reasons, but where are the other linemen falling into place? The second-team o-line Thursday (from left to right) was Brian Mihalik, Kenny Wiggins, Wesley Johnson, Joe Dahl and Corey Robinson. – Tim Twentyman

Return duties: The Lions worked on some kickoff return drills Thursday, and rookie running back Kerryon Johnson was among those returning kickoffs in the drill. Johnson returned kicks at Auburn as a freshman and sophomore. He averaged 27.6 yards per return in 2015 and 22.3 yards in 2016. – Tim Twentyman