Rick Porcello kept up the starting pitching surge Detroit has been riding all season. Prince Fielder came through with another clutch hit, and Jose Valverde even had a stress-free appearance to try to get back on track. This is the way the Tigers wanted to start the series in Minnesota. Fielder broke open a scoreless game with a two-run double in the sixth inning, the spark Porcello and the Tigers used to beat the Twins 4-0 on Friday night.