Haynes King didn't want to stop working.
The work day was complete Friday, but the Carolina Panthers' undrafted free agent quarterback felt the urge to continue reviewing the NFL playbook.
There were plays he experienced during Friday's rookie minicamp-opening practice that he could have executed better. Along with former Memphis QB Brendon Lewis, King organized a group of prospects to spend some of their off time rehearsing plays.
His recruiting tactics proved effective as the first-year players fielded a full offensive line, a tight end and three wide receivers, including third-round draft pick Chris Brazzell II.
"It was kind like a knock on the door, trying to find (people)," King said following Saturday's practice, which capped the two-day camp at the practice fields near Bank of America Stadium.
Panthers' rookies, QB Haynes King work OT outside office
The players discovered a parking lot near the stadium and the hotel where they were residing during the rookie christening. The nearly deserted parking lot offered enough room for the prospects to run through the plays again, hoping the overtime work would improve the flow of Saturday's practice.
"We had a couple of hard one and wanted to be able to communicate and be able to operate at a high level when we went out there," King said. "Making sure you're going on the right tracks."
The King-led impromptu practice sessions started trending the past few days.
"I mean, you got to get where you get it," Brazzell said Saturday. "He's in the locker room, helped me go over plays, talking the plays out for me.
"He's a good leader. A lot of people want to be great, so he decided he was like, 'Man, we go to the parking lot."
Where else?