Editors' pick: Originally published July 28.

NFL training camp is officially underway. The season is only about a month away. 

The off-season has been an active one with Peyton Manning's retirement, Tom Brady's four-game suspension being upheld by a federal court, and the Los Angeles Rams' relocation to Southern California from St. Louis. That is in addition to the usual player and coaching movements and ongoing concerns about the link between head injuries and the game. 

Ticket demand is already strong and prices are running high. An AFC team preview on Razorgator gives an in-depth look at many teams' ticket prices during the season. The defending Super Bowl champion Denver Broncos and perennial contending New England Patriots have the highest prices.

Both teams have passionate fans and have been flux because of Manning's and Brady's coming absences.  

Jimmy Garoppolo will start at quarterback for New England. Mark Sanchez, Paxton Lynch or Trevor Siemian will play quarterback for Denver.

A Super Bowl 50 rematch against the Carolina Panthers on Sept. 8 will be the Broncos' most expensive game at Sports Authority Field this season, with tickets listed between $227 and $1,987. The team's Oct. 30 game with the San Diego Chargers is the cheapest with a get-in price of $88.

Super Bowl rematches will be a hot ticket in 2016, as the Patriots welcome the Seattle Seahawks to Gillette Stadium on Nov. 13. This will be the top-priced Patriots game with tickets starting from $189 on Razorgator.

Don't expect much cheaper prices through the remainder of the season. The Sept. 22 matchup against the Houston Texans will have the cheapest tickets but even the lowest-priced ones will cost $132.

Interest and ticket prices are also running high for the Rams, Minnesota Vikings and Atlanta Falcons. The interest in the Rams reflects their much-publicized return to California after a nearly two decade absence. The Rams moved to St. Louis after the 1995 season for financial reasons, but many fans were not comfortable with the fit, even after the team won a Super Bowl in 1999. For most of their history, the Rams have been based in Los Angeles. 

The Coliseum was the Rams' previous home and is among the country's most historic stadiums. It dates back nearly a century and has hosted two Olympic Games. 

According to Razorgator, the Rams' home opener at the Los Angeles Memorial Coliseum against the Seattle Seahawks on Sept. 18 will be the team's most expensive game this season. 

Prices currently start from $109 in the corners of Section 1 of the Coliseum, while sideline seats in Section 5H max out at $3,735. The cheapest game will be against the Buffalo Bills on Oct. 9. Prices are ranging from $62 to $796.

The Vikings will open a new, domed stadium, while the Falcons will leave their domed Georgia Dome. 

The Vikings will play their first game at the newly-opened U.S. Bank Stadium against their arch-rival, the Green Bay Packers, on Sept. 18. Tickets are starting from $274 in Section 301, behind the western goalpost.

The most expensive ticket? A Vikings Club pass is fetching $9,957.

The Falcons' game against the Packers has a get-in price of $92 for tickets in the Upper Endzone of Section 305. Barring a playoff appearance, the team will play its last game there Jan. 1 against the New Orleans Saints, where tickets start from $67.