Vernon Wells hit a go-ahead, two-run double as part of an eight-run eighth inning and the Blue Jays rallied for a 10-5 victory Friday night.
Chacin left the game after three innings with a strained elbow and the left-hander was placed on the 15-day disabled list. He was making his third start since being activated from the disabled list with a sprained ligament in his elbow and a strained forearm. Chacin allowed two runs and three hits.
"It's frustrating," Wells said. "I feel bad for him. It's another unfortunate event that's happened this year and we just got to get through it."
Chacin first felt the problem in the third inning and said it's not any worse than before. He will undergo an MRI on Saturday.
"I want to come back and be OK for the rest of the season," Chacin said.
The Blue Jays already have A.J. Burnett on the 60-day disabled list because of elbow problems. Toronto also placed right-hander Pete Walker on the 15-day disabled list after the game with a sore right shoulder.
Down 5-2 in the eighth, Toronto sent 12 batters to the plate.
Pinch-hitter Shea Hillenbrand led off the inning with a homer off Fernando Rodney.
Aaron Hill followed with a single and Rodney walked pinch-hitter Alex Rios before Reed Johnson loaded the bases with a single off Todd Jones (0-4).
Frank Catalanotto tied it with a two-run single past diving second baseman Placido Polanco, and Wells followed with his double in the gap in right-center.
After Troy Glaus chased Jones with an RBI single, Lyle Overbay's run-scoring double and Gregg Zaun's sacrifice fly off Bobby Seay gave Toronto a 10-5 lead.
"We never feel we are out of a game, especially if we are down by three runs," Wells said. "With Shea and Rios coming off the bench -- not too many teams can say they have two guys that are hitting .350 coming off the bench late in a game."
Jason Frasor (2-1) pitched 1 2/3 innings for the victory.
Jones lost for the third time in his last four appearances.
"I've been through way worse than this. I don't want to go down that road," Jones said, adding he has to focus better on making better pitches.
Polanco homered in his second straight game for the Tigers, who haven't won consecutive games in nearly two weeks.
"You have to tip your hat. They are a very good ballclub," Detroit manager Jim Leyland said.
Polanco's two-run shot off Scott Downs in the fifth gave Detroit a 4-2 lead.
Catalanotto extended his hitting streak to 11 games with an RBI double in the first.
Curtis Ganderson and Magglio Ordonez hit RBI singles in the third to give Detroit a 2-1 lead. Consecutive doubles by Wells and Glaus tied it at 2 in the bottom half of the inning.
Brandon Inge's RBI single in the sixth made it 5-2.
Hillenbrand has three pinch-hit homers in his career. ... Toronto manager John Gibbons didn't start Rios because he wanted to give him a day off. ... Detroit OF Craig Monroe didn't start for the second straight game because of a sprained ankle. He injured it while trying to make a catch at the wall on Wednesday.