The MLB Power System Play is on Arizona at 7:45 eastern. The Diamondbacks just took the last 2 at home against the Dodgers and appear to be a bit better than many thought. While they are under .500 at 8-11 they do play in the toughest division in baseball and have played one of the toughest schedules thus far. They head into St. Louis and are backed with a powerful and Undefeated system that plays on road dogs that are off a home dog win and had 2 or less hits./ These teams are a perfect 4-0 in this super rare system. Looking at the pitching Arizona has Castellanos going and he has better numbers than St. Louis Dakota Hudson. Arizona has a 6-1 record on Thursdays and St. Louis is 1-4 vs a team that allowed 2 or less runs. Look for the Diamondbacks to surprise the Cards