OAKLAND, Calif. -- To Mark Buehrle, luck played a large role in his scoreless outing Tuesday night.
The Toronto left-hander pitched seven innings, extending his shutout streak to 20 innings and leading the Blue Jays to a 5-0 victory over the Oakland A's.
Was it the same type of "luck" that helped Buehrle pitch two career no-hitters, including a perfect game, and rack up 181 wins over 14 major league seasons?
"He does everything right," Blue Jays manager John Gibbons said. "He's had a tremendous career, and he's just building on it.
"He's old reliable. He's not going to win every night, but when he goes out there, you feel good and he usually gives you a shot."
Buehrle (7-7) allowed just five hits, all singles, struck out two and didn't walk a batter.
Buehrle's streak began two starts ago when he took the loss against the Tampa Bay Rays but finished his stint with four scoreless innings. On Thursday, he fired a two-hit shutout against the Houston Astros, striking out nine, his highest single-game total since he fanned a career-high 12 in 2005 against the Seattle Mariners.
"First three innings, there weren't too many quiet outs," Buehrle said. "They were putting the ball in play. Like I said before, the whole luck thing. If this was in our park or some other parks, I might have been out of there in the third inning because there were some balls that were probably going to be home runs in different (parks)."
Buehrle, 34, appeared on his way to throwing back-to-back shutouts for the first time in his career, but Gibbons took him out after seven innings and 93 pitches. And no, Buehrle didn't lobby to stay in.
"Pitch count was getting up there," said Buehrle, who threw 61 of his 93 pitches for strikes. "It's tough pitching here with this (cool) weather. It's tough to stay loose. I realize I'm old, my arm's old and I'm getting older. It's tough to stay loose in between innings. There were a couple times I was going out there and wasn't even sweating."
Blue Jays reliever Steve Delabar threw a perfect eighth, striking out the side on nine pitches, and Darren Oliver pitched a scoreless ninth, his 1,900th big-league inning.
The Blue Jays' powerful offense gave Buehrle more than enough support. Jose Bautista hit a solo shot in the first inning, his 25th homer of the season. Emilio Bonifacio added a solo homer in the fifth, when the Blue Jays scored three times to take a 5-0 lead.
The A's never got a runner past second against Buehrle, whose pitches rarely hit higher than the low 80s on the radar gun.
"For any pitcher, whether you're throwing 95 or 85, I think what he does a good job of doing is changing speeds," said A's third baseman Josh Donaldson, who had a single in three at-bats against Buehrle. "He located pretty well for the most part, and the times he did make a couple mistakes tonight, we weren't able to do enough damage to score any runs."
Coming into the game, Buehrle was 6-13 in his career against the A's, but he had won his past two starts against Oakland and allowed just six earned runs over his previous 21 1/3 innings, all in 2011.
"We just couldn't get anything going against Buehrle," A's manager Bob Melvin said. "Even though he doesn't throw hard, he bullies right-handers with that cutter."
A's right-hander Dan Straily (6-5) suffered his career-high third straight loss, allowing five runs on six hits and lasting just 4 2/3 innings. However, only two of the runs were earned, as left fielder Yoenis Cespedes and shortstop Adam Rosales each committed a costly error during Straily's outing.
The Blue Jays grabbed a 1-0 lead in the top of the first on Bautista's two-out home run to left. With a 1-1 count, Straily threw a changeup, and Bautista hammered it.
Toronto increased its lead to 2-0 in the fourth. First baseman Edwin Encarnacion singled to right with two outs and moved to second on Adam Lind's single. Encarnacion scored when Colby Rasmus singled sharply and Cespedes booted the ball.
During the game, the A's announced they had acquired infielder Alberto Callaspo from the Los Angeles Angels in a trade for minor league infielder Grant Green, a former No. 1 draft pick. Callaspo, 30, is a lifetime .273 hitter in eight major league seasons.
NOTES: A's LHP Brett Anderson threw another extended bullpen session Tuesday. "Very good," Melvin said of Anderson's work. "It's been encouraging to see." Anderson has been on the disabled list since May 1 due to a right foot stress fracture and a sprained right ankle. He likely will pitch a simulated game Friday. ... Blue Jays LF Melky Cabrera was out of the starting lineup to rest his sore legs. Bonifacio started in left. ... Thanks to a scoring change from Monday night's game, A's 2B Eric Sogard's hitting streak is alive at eight games. A first-inning error charged to Encarnacion on a Sogard ground ball was changed to a hit. Sogard didn't play Tuesday.