Marcus Stroman pitched six shutout innings, Lourdes Gurriel Jr. had three hits and threw out a runner at the plate, and the Toronto Blue Jays beat the Boston Red Sox 6-1.
Danny Jansen hit a two-run single and Eric Sogard a solo homer for the Blue Jays, who won the final two games of the three-game MLB series.
Rowdy Tellez added two hits and scored twice.
The Red Sox had won eight of nine after taking the series opener Friday on Christian Vazquez's two-run, walk-off homer.
Stroman (5-9) held the Red Sox to five singles and struck out six while walking one.
Rick Porcello (5-7) gave up five runs on eight hits over six innings.
In other MLB action on Sunday, the Detroit Tigers lost 8-3 to the Cleveland Indians.
Toronto is at Yankee Stadium for a series with New York beginning Monday.