Quintana powers White Sox over Blue JaysLeft-hander wins back-to-back starts for first time this season in 4-0 victory
Jose Abreu extended his hitting streak to 14 games with an RBI single as the White Sox posted their first shutout of the season and won three straight for the first time in more than a month. Chicago swept a home series against Cleveland from May 26-28. They'd gone 8-17 since before Friday's 5-4 victory began the current streak.
Quintana (5-7) allowed three hits in seven innings, improving to 4-1 with a 1.80 ERA in six starts against the Blue Jays. Quintana walked two and struck out seven.
Eric Surkamp worked the eighth and Jake Petricka finished.
Facing his former team for the second time, Blue Jays left-hander Mark Buehrle (10-5) lost for the fourth time in five starts, allowing two runs and six hits in eight innings. He walked two and struck out five.
Buehrle lost four straight decisions for first time since losing four in a row for Miami from June 1-19, 2012. He has not won since June 1 against Kansas City.
Buehrle, who spent the first 11 seasons of his career with Chicago, beat the White Sox in Toronto on April 15, 2013.
Gordon Beckham hit a two-out double off Buehrle in the third and scored when Abreu followed with a first-pitch single to left.
Sierra, who began the season with Toronto but was designated for assignment on May 1, doubled Chicago's lead with a one-out blast in the fourth.
Toronto's Jose Reyes hit a one-out double in the eighth and, one out later, Edwin Encarnacion walked. Jose Bautista, who hadn't played since leaving last Sunday's game at Cincinnati with a strained left hamstring, pinch hit for Dioner Navarro, but grounded into a fielder's choice.
Tyler Flowers capped the scoring with a two-run single off former White Sox closer Sergio Santos in the ninth.
NOTES: Bautista ran in the outfield before the game and said his leg was still sore. He hopes to be able to DH Tuesday. ... The Blue Jays are off Monday before opening a two-game series against Milwaukee on Tuesday. Brewers RH Marco Estrada (7-4) faces Toronto RH Drew Hutchison (5-6). ... The White Sox return home to begin a three-game series against the Los Angeles Angels on Monday. Angels RH Garrett Richards (8-2) faces Chicago RH Hector Noesi (2-5).