Here's the new lineup for Game 4:
1. Torii Hunter
2. Miguel Cabrera
3. Prince Fielder
4. Victor Martinez (DH)
5. Jhonny Peralta
6. Alex Avila
7. Omar infante
8. Austin Jackson
9. Jose Iglesias
Doug Fister is starting on the mound.
Preview: Fister on mound for Tigers in Game 4
Austin Jackson has been moved from the lead-off position all the way down to the 8th spot.
"Huge lineup change, really ... I don't know if it's huge or not but tonight Hunter's gonna lead off," said Leyland during a Wednesday news conference.
The manager said he wants Jackson to be relaxed out there. He said Jackson has hit well against Red Sox starting pitcher Jake Peavy.
Game 4 starts at 8 p.m. at Comerica Park. Boston leads the series 2-1.