DETROIT -- The Toronto Blue Jays got back to winning the way they usually do.
Toronto leads the majors with 147 home runs.
"That just seems to be what this club is all about," manager Cito Gaston said. "That seems to be the way we win."
Already missing injured third baseman Brandon Inge, the Tigers placed outfielder Magglio Ordonez and second baseman Carlos Guillen on the 15-day disabled list Sunday. Ordonez broke his right ankle and Guillen strained his right calf in Saturday's night's 3-2 loss to Toronto.
Jose Valverde (1-2) allowed Overbay's tiebreaking homer.
With Wells on first following a leadoff single that went off Valverde's left knee, Overbay took an 0-1 pitch to the opposite field and just over the left-field fence, beyond the glove of a leaping Ryan Raburn. It was Overbay's 11th home run.
"Honestly, I was just trying to get something in the gap and let Vernon do all the work," Overbay said. "He threw a lot of splitters and he hung one."
It was only the second home run Valverde has allowed his season.
"He likes the fastball out over the plate, so we were just trying to get over a splitter and he left it up," Tigers catcher Gerald Laird said. "It's a good piece of hitting."
Miguel Cabrera's run-scoring single in the bottom of the eighth tied it at 3. Shawn Camp relieved starter Brett Cecil and yielded a leadoff triple to Jackson. Camp walked Ramon Santiago before getting Raburn to pop out. Cabrera then looped a single to center to score Jackson and send Santiago to third.
"I wasn't going to let him [Boesch] beat me," Downs said. "I knew the situation. He was going to hit my pitch."
Wells broke a 2-all tie when he led off the seventh with his 20th home run, which carried over the left-field fence. It was his first home run since June 27.
Molina's two-run shot in the sixth gave Toronto a 2-0 lead. Edwin Encarnacion led off with an infield single and Molina drove Armando Galarraga's 1-2 pitch over the left-center fence and into the Blue Jays' bullpen. It was his third homer.
Detroit came back to tie it in the bottom half.
Worth hit his second homer, lining Cecil's 0-1 pitch into the left-field stands. Jackson followed with a double and, after moving to third on a wild pitch, scored on Raburn's two-out double off the left-field fence.
Cecil scattered six hits over seven innings, walked one and struck out six.
Galarraga gave up three runs and six hits in seven innings. He didn't walk a batter and struck out five.
The Tigers purchased the contracts of 1B-3B Jeff Larish and INF Will Rhymes from Triple-A Toledo. Rhymes made his major league debut when he pinch hit in the ninth inning. He struck out swinging against Gregg. ... Detroit released RHP Billy Buckner and designated pitcher Casey Fien for assignment. ... Blue Jays SS Yunel Escobar was 2 for 4, stretching his hitting streak to seven games (12 for 29, .414). ... Jackson ran his hitting streak to nine games (18 for 41, .439).