Arenado went 2-for-5 with a two-run home run in the bottom of the ninth inning to beat the Diamondbacks on Wednesday.
Arenado ambushed Archie Bradley on the first pitch of his at-bat and hit a 423-foot blast to win the game for the Rockies. The 28-year-old has a .277/.323/.491 slash line with seven home runs in 31 games since the All-Star break.