The Dallas Center Grimes baseball team opens defense of their 3A state crown today when they match up against Harlan in a first round battle at Principal Ballpark in Des Moines.  The Mustangs won the title last year after blowing out Decorah in the final.  Dallas Center Grimes is led by 1st Team All District player Jake Lewis who hit 354 this season.  Boone will also be in action today as they open up with Davenport Assumption.  The Torreadors are coming off a seventh inning rally that saw them score four times in their last at bat to upend RRC champion ADM 4-3 in the substate final.