Dave Stieb pitched a two-hitter and Rance Mulliniks hit a two-run double as the Blue Jays defeated the Boston Red Sox, 4-0, last night in Toronto.

Boston has lost nine of its last 12. Toronto has won five in a row.

Stieb (12-11) limited the Red Sox to Carney Lansford's single to center in the second and Gary Allenson's infield hit in the third. He pitched his fourth shutout and 12th complete game, tying him for the league lead in both categories.

"I went out there with a grudge after what happened the last time," said Stieb, referring to a July 28 game in Fenway Park, when Boston scored five runs in the fifth inning and beat Toronto, 9-7. "As the game went on, I wanted to get the shutout."

He added: "It was my best game in the majors."

This was the first time the Blue Jays have beaten Mike Torrez (7-7) in nine attempts.

They took a 2-0 lead in the third. Alfredo Griffin singled and went to third on Damaso Garcia's single. Garcia stole second, and Mulliniks scored both runners with an opposite-field double to left.