More than a month removed from the Super Bowl, some may already be yearning for their NFL fix.
The first glimpse comes during HBO's "Hard Knocks," which gives an inside look at one team during training camp. Here are the team eligible this year:
NFL owners passed a resolution in 2013 stating that teams are exempt from the show if they meet one of three criteria: 1) They have a first-year head coach; 2) They have a playoff berth in the past two seasons; 3) They have appeared on Hard Knocks in the past 10 years.
A team can volunteer for Hard Knocks, as the Atlanta Falcons did in 2014. The Houston Texans were on the show last season.