CHICAGO (AP) - Rick Porcello pitched four-hit ball over seven scoreless innings, Jhonny Peralta homered and the Detroit Tigers took advantage of four errors in a 6-2 victory over the Chicago White Sox on Tuesday night. With MVP and Triple Crown winner Miguel Cabrera sidelined by a hip problem, the AL Central leaders again got all the help they needed from Chicago. One night after matching what was a season-high with three errors in a 7-3 loss to the Tigers, the White Sox managed to outdo themselves. Peralta delivered an RBI single and scored in a three-run fourth in which the Tigers took advantage of two errors. He also hit a solo drive off Hector Santiago in the sixth, and Detroit scored three in the inning to go up 6-0. Porcello won his third straight start after dropping three in a row.