Just a 48.02 performer as an 11th-grader 2 years ago, Johnnie Blockburger is now a 44.71 guy. (SIMON ASHER/ARIZONA ATHLETICS)
Just a 48.02 performer as an 11th-grader 2 years ago, Johnnie Blockburger is now a 44.71 guy. (SIMON ASHER/ARIZONA ATHLETICS)