Batting leadoff because of an injury to Austin Jackson, Detroit's Andy Dirks hit a drive to center field for a double in his first at-bat. Three innings later, the 27-year-old outfielder made an even better impression. Dirks hit his first career grand slam, part of a six-run fourth for the Tigers in their 7-2 victory over the Houston Astros on Monday night. He was at the top of the lineup because Jackson went on the disabled list earlier in the day with a pulled left hamstring.
