When his sons or nephew occasionally underachieved, Tyrone Hopper Sr. would exclaim: “Man, we’re going to have to change your name to something else — you can’t be a Hopper if you’re going to play like that!” It was a playful line, but it kept them in line. It meant something to be a Hopper on the football field. “It made them go harder,” Hopper Sr. said Wednesday from Alpharetta, Georgia. His youngest son, Tyjai, is a high school sophomore and already has a college offer from Akron. His son, Tyneil, plays for Boise State. His son and namesake, Tyrone Jr., recently transferred to Mizzou from N…