'Competitive' Rookie Class Spends Evening At D-Backs Game

First-round picks Harrison Jr. and Robinson throw out first pitch Zach Gershman

Darius Robinson has fond memories of throwing the baseball with his friends when he lived in Detroit when he was in high school. That was also the last time he threw a baseball.

Until Thursday.

The first-round pick-- 27 overall -- along with the No. 4 overall selection, Marvin Harrison Jr.., each threw out a first pitch