The showcase of everything football at the Indiana Convention Center has broken its attendance record this year, with more than 200,000 people attending.
The event allows people to see NFL memorabilia, purchase gear, and event take part in the competition.
On Friday, Jets WR Plaxico Burress was running drills with a group of a few dozen fans while Cardinals RB Beanie Wells was coaching kids on the basics of the game.
Many of the players are taking part in the event as part of the NFL Play 60 initiative. It's a national youth health and fitness campaign focused on increasing the wellness of young fans by encouraging them to be active for at least 60 minutes daily.