ST. LOUIS, Mo. (WXYZ) -- J.D. Martinez hit a grand slam in the fourth inning of the Diamondbacks' game against the Cardinals on Thursday night.
We're really starting to like this J.D. Martinez guy. #OurSeason pic.twitter.com/Z6RtoRjHPO
— Arizona Diamondbacks (@Dbacks) July 28, 2017
Since being traded from the Tigers to the Diamondbacks, Martinez has hit four home runs, including two in a 10-3 win over the Braves on Wednesday.
Martinez hit 16 home runs in 57 games with Detroit.
