LOS ANGELES -- Tony Giarratano can't remember ever saving a baseball as a souvenir. This one, he's going to keep.
"I might have kept a ball in Little League or something. I don't remember. But I've got this one," said Giarratano, who came into the game in the fifth inning to replace the injured Carlos Guillen.
Although he obviously was excited about his first big league homer, the 22-year-old rookie was modest.
"I don't feel like I have much power. I'm more of a line drive hitter. I was just trying to get on base," said Giarratano, who had only 11 homers in 726 minor league at-bats before making his major league debut last Wednesday.
He added, "But I was happy to help. That got us going in that inning."
The homer against the Dodgers was his fourth hit in 15 major league at-bats.
"His home run was the spark," Detroit manager Alan Trammell said. "And we needed it."
Dmitri Young and Ivan Rodriguez also hit solo shots as the Tigers ended a three-game losing streak and halted the Dodgers' winning streak at three games. It also was Detroit's first victory in five interleague contests against them.
Guillen, the major league's third-leading hitter, left after straining his left hamstring as he ran between third and home in the fifth inning. He was thrown out easily as he limped to the plate trying to score from second on Young's single.
The Tigers' shortstop is day to day, and he said, "It's not real bad. We'll see tomorrow."
Giarratano greeted Duaner Sanchez with a drive into the seats in right to put Detroit ahead 5-4. Young followed with his 11th home run, deep into the pavilion in right-center.
The Tigers added two more runs off Sanchez in the inning, on Craig Monroe's RBI groundout and Nook Logan's run-scoring single.
Rodriguez hit his fifth homer in the sixth off beleaguered Scott Erickson, making his third appearance out of the bullpen since losing his starting job. Later in the inning, pinch-hitter Chris Shelton's RBI groundout evened the game at 4.
Detroit's Chris Spurling (2-0) pitched a perfect sixth inning to get the win.
Sanchez (1-2) gave up four runs in his one inning.
"We felt we were in a good position going into the seventh," Los Angeles manager Jim Tracy said. "But they got to Duaner tonight.
"He's a guy who's been good for us much of the season, and he had a very, very bad seventh inning."
The Dodgers' Jason Phillips homered off Nate Robertson in the fourth inning, his fourth of the season. Olmedo Saenz had a two-run double for Los Angeles in the fifth.
Robertson gave up four runs on five hits in five innings, with three strikeouts and four walks.
Los Angeles rookie Derek Thompson was impressive again in his third major league start. The 24-year-old left-hander went five innings for the third time in a row, allowing two runs on six hits. He struck out two and walked three.
Los Angeles had swept the Tigers in their first interleague series, in Detroit in 2003, and beaten them 5-3 in the opener of their three-game set at Dodger Stadium.