Welcome to the first installment of the Vikings Territory Training Camp Primer series — leading off with Sam Bradford, Teddy Bridgewater and the quarterback position.

Quarterback has always been and likely always will be the most important and most polarizing position in football. The Minnesota Vikings certainly aren’t exempt from this general rule of thumb — and this offseason likely represents a climax in team history with regard to the inherently polarizing nature that comes with the territory.

It has almost been a year since a Teddy Bridgewater was lost for the 2016 season and, at the time, the foreseeable future as a result of potentially the most catastrophic injury the football world has ever seen.

A lot has changed in Vikings Territory since Minnesota lost its heart and soul this past August. Sam Bradford, who will close out his first calendar year with the organization on September 3rd, is now firmly entrenched as the Vikings’ starting quarterback. Taylor Heinicke, who, like Bridgewater, missed all of the 2016 campaign following an absurd foot injury.

But, likely as a result of the uncertainty surrounding the Old Dominion product following a full-year layoff, he will once again be forced to compete for a spot on the 53-man roster against newcomer Case Keenum, formerly of the Los Angeles Rams.

Rounding out Minnesota’s training camp quarterback depth chart is undrafted rookie and former Illinois signal-caller Wes Lunt. While a number of questions regarding the future of the position in Minnesota have been answered this offseason, quarterback remains as much of a question mark as ever — yielding a handful of intriguing storylines to keep an eye on during training camp and throughout the 2017 season.