The National League Power system play is on the Pirates. Game 902 at 7:05 eastern. The Pirates are hit and have won 7 of 8 this month. The Cardinals have lost 6 of 7 vs leftys and 4 of the last 5 here in Pittsburgh. The Cardinals fit a negative system here tonight that plays against certain road teams with a total of 8 or less off a road dog win where they scored 5 or more runs and had 1 or less errors, vs an opponent off a home favored win if hey scored 5+ runs and won by 2 or more runs. Pittsburgh has J. Locke going and he has won 7 of 10 at home with a 1.59 era over his last 3 starts. He has won all 3 home starts vs the Cards. Martinez for St. Louis has a 8.74 era vs the Pirates and has allowed 11 runs in 11 innings with 3 home runs. Look for the Pirates to have the Cardinals walking the plank tonight.