Steven Sipple: Gabe Ervin Jr., Chubba Purdy fit underdog description heading into Huskers' preseason-camp position battlesby:Steven Sipple•07/10/22•steven_sippleRead In AppCHAMPAIGN, IL - AUGUST 28: Nebraska RB Gabe Ervin Jr. (22) runs with the ball during a college football game between the Nebraska Cornhuskers and Illinois Fighting Illini on August 28, 2021 at Memorial Stadium in Champaign, IL (Photo by James Black/Icon Sportswire via Getty Images)