Minnesota Vikings receiver Justin Jefferson may go down as one of the greatest humans to ever play the game of football -- but there is still one achievement that remains elusive to the 26-year-old. Growing up,

Here are five storylines to follow as the Vikings open training camp this week at TCO Performance Center. There were flashes of brilliance from McCarthy in the spring; he impressed on the field with his arm talent, and off the field with his magnetic personality at the podium. Will he be able to keep the momentum going in the summer?