Bolt , 29 , has n't run much lately since getting hurt during his national championships .
No male runner has been faster this year than Gatlin 's 9.8 at the U.S. Olympic trials .
Bolt , 29 , has n't run much lately since getting hurt during his national championships , and no male runner has been faster this year than Gatlin 's 9.8 at the U.S. Olympic trials .