Vladimir Guerrero Jr. and Randal Grichuk hit back-to-back home runs, Jacob Waguespack won his third straight decision and the Toronto Blue Jays beat the Seattle Mariners 7-3 Friday.

Derek Fisher and Danny Jansen also went deep for the Blue Jays, who have hit 110 home runs since June 16. The New York Yankees entered play Friday with a major league-leading 112 homers in the same span.

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Toronto Blue Jays' Randall Grichuk, front, and Vladimir Guerrero Jr. celebrate after hitting back-to-back home runs against the Seattle Mariners during the third inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Vladimir Guerrero Jr. and Randal Grichuk hit back-to-back home runs, Jacob Waguespack won his third straight decision and the Toronto Blue Jays beat the Seattle Mariners 7-3 Friday.

Seattle Mariners' Mallex Smith is tagged out by Toronto Blue Jays' Cavan Biggio while trying to stretch a single into a double during the eighth inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Waguespack (4-1) allowed two runs and five hits in 5 1/3 innings, winning for the third time in three starts. The right-hander threw a career-high 102 pitches.

Seattle Mariners' Dee Gordon gestures to the dugout after hitting a triple against the Toronto Blue Jays during the eighth inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Fisher homered off LeBlanc in the second inning as the Blue Jays overcame a two-run deficit with the first of consecutive three-run innings. Jansen made it four homers off LeBlanc, leading off the seventh inning with his 12th of the season.

Seattle Mariners starting pitcher Matt Wisler throws to a Toronto Blue Jays batter during the first inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Matt Wisler opened for Seattle with a scoreless first, and the Mariners jumped ahead on a two-out, two-run single by Tim Lopes in the second.

Toronto Blue Jays' Bo Bichette puts the tag on Seattle Mariners' Tim Lopes for the out on an attempted steal of second during the second inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Mariners: RHP Félix Hernández (shoulder) is scheduled to make a rehab start at Triple-A Tacoma Monday. Hernandez pitched four shutout innings for Class A Everett on Aug. 14, striking out eight and allowing just one hit. Hernandez went 1-4 with a 6.52 ERA in eight starts for Seattle in April and May, but hasn't pitched in the majors since May 11 at Boston, when he allowed seven runs in 2 1/3 innings.

Seattle Mariners' Kyle Seagar, left, and Daniel Vogelbach come into score against the Toronto Blue Jays on a single by Tim Lopes during the second inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

MEJIA SUSPENDED

Toronto has won five of seven and 12 of 18. The Mariners have lost five of eight and 10 of 13.

Toronto Blue Jays' Randall Grichuk, front, and Vladimir Guerrero Jr. celebrate after hitting back-to-back home runs against the Seattle Mariners during the third inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Toronto Blue Jays' Randall Grichuk, front, and Vladimir Guerrero Jr. celebrate after hitting back-to-back home runs against the Seattle Mariners during the third inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Waguespack (4-1) allowed two runs and five hits in 5 1/3 innings, winning for the third time in three starts. The right-hander threw a career-high 102 pitches.

Guerrero Jr. and Grichuk connected off left-hander Wade LeBlanc (6-7) four pitches apart in the third inning. Guerrero's homer was his 14th. Grichuk hit his 23rd.

The Blue Jays have hit back-to-back homers 12 times this season, breaking the team record set in 1999.

Seattle Mariners' Mallex Smith is tagged out by Toronto Blue Jays' Cavan Biggio while trying to stretch a single into a double during the eighth inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Seattle Mariners' Mallex Smith is tagged out by Toronto Blue Jays' Cavan Biggio while trying to stretch a single into a double during the eighth inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Fisher homered off LeBlanc in the second inning as the Blue Jays overcame a two-run deficit with the first of consecutive three-run innings. Jansen made it four homers off LeBlanc, leading off the seventh inning with his 12th of the season.

The four home runs allowed matched LeBlanc's career-worst. He also allowed four homers against Minnesota on May 18.

LeBlanc has lost four straight decisions. He allowed seven runs and matched a career-worst by giving up 11 hits in seven innings.

Seattle Mariners' Dee Gordon gestures to the dugout after hitting a triple against the Toronto Blue Jays during the eighth inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Seattle Mariners' Dee Gordon gestures to the dugout after hitting a triple against the Toronto Blue Jays during the eighth inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Matt Wisler opened for Seattle with a scoreless first, and the Mariners jumped ahead on a two-out, two-run single by Tim Lopes in the second.

Toronto turned the deficit around in the bottom half when Brandon Drury hit an RBI single and Fisher followed with his fourth home run.

TRAINER'S ROOM

Seattle Mariners starting pitcher Matt Wisler throws to a Toronto Blue Jays batter during the first inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Seattle Mariners starting pitcher Matt Wisler throws to a Toronto Blue Jays batter during the first inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Mariners: RHP Félix Hernández (shoulder) is scheduled to make a rehab start at Triple-A Tacoma Monday. Hernandez pitched four shutout innings for Class A Everett on Aug. 14, striking out eight and allowing just one hit. Hernandez went 1-4 with a 6.52 ERA in eight starts for Seattle in April and May, but hasn't pitched in the majors since May 11 at Boston, when he allowed seven runs in 2 1/3 innings.

ROSTER REPORT

Blue Jays: Toronto claimed C Beau Taylor on waiver from Oakland and assigned him to Triple-A Buffalo.

Toronto Blue Jays' Bo Bichette puts the tag on Seattle Mariners' Tim Lopes for the out on an attempted steal of second during the second inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Toronto Blue Jays' Bo Bichette puts the tag on Seattle Mariners' Tim Lopes for the out on an attempted steal of second during the second inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

MEJIA SUSPENDED

Mariners minor league LHP Eliezer Mejia was suspended 72 games Friday for testing positive for the steroid stanozolol. Mejia, 18, was playing in the Dominican Summer League. His suspension will carry into next season.

UP NEXT

Seattle Mariners' Kyle Seagar, left, and Daniel Vogelbach come into score against the Toronto Blue Jays on a single by Tim Lopes during the second inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Seattle Mariners' Kyle Seagar, left, and Daniel Vogelbach come into score against the Toronto Blue Jays on a single by Tim Lopes during the second inning of a baseball game Friday, Aug. 16, 2019, in Toronto. (Fred ThornhillThe Canadian Press via AP)

Mariners: Seattle has not named a starter for Saturday afternoon's game.

Blue Jays: RHP Trent Thornton (4-8, 5.34) starts for Toronto on Saturday, his first career appearance against Seattle. Thornton was a hard-luck loser against the Yankees on Aug. 11, allowing one run in six innings. He's 1-1 with a 4.60 ERA in three starts this month.

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