The Toronto Blue Jays' Russell Martin watches his solo home...

The Toronto Blue Jays' Russell Martin watches his solo home run against the Boston Red Sox during the 11th inning of a game at Fenway Park in Boston on Saturday, June 13, 2015. Credit: AP / Winslow Townson

BOSTON -- Russell Martin delivered the go-ahead hit for the second straight day, a leadoff home run in the 11th inning Saturday that sent the Toronto Blue Jays to their 10th straight win, 5-4, over the Boston Red Sox.

The winning streak is Toronto's longest since it took 11 in a row in June 2013.

Boston, in last place in the AL East, lost its fifth straight game and fell a season-worst nine games under .500 at 27-36.

On Friday night, Martin hit a tiebreaking, bases-loaded triple during a nine-run burst in the seventh for a 13-10 victory. Saturday, he drove a 2-and-0 pitch from Matt Barnes (2-2) deep into the left-centerfield stands for his 10th homer of the season.

Brett Cecil pitched a perfect 11th for his fourth save, and second in two days, to preserve the win for Aaron Loup (2-3).

Toronto took a 3-0 lead in the second when it loaded the bases on singles by its first three batters -- Edwin Encarnacion, Chris Colabello and Martin. Any possibility of a repeat of Friday night's nine-run inning, when the first nine hitters scored before a batter was out, ended when Justin Smoak struck out.

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