Pearce (HR, RBI single) leads Blue Jays over Red Sox 4-3

Toronto Blue Jays' Steve Pearce rounds the bases on a solo home run off Boston Red Sox starting pitcher Eduardo Rodriguez during the second inning of

Toronto Blue Jays' Steve Pearce (28) is congratulated by Troy Tulowitzki, right, after his solo home run off Boston Red Sox starting pitcher Eduardo R

Boston Red Sox catcher Christian Vazquez aids home plate umpire Chris Segal after he was accidentally hit on the head by Toronto Blue Jays' Josh Donal

Second base umpire Jordan Baker (71) rests his hand on home plate umpire Chris Segal, after Segal was accidentally hit on the head by Toronto Blue Jay

Home plate umpire Chris Segal heads back to call the game after he was accidentally hit on the head by Toronto Blue Jays' Josh Donaldson's bat during

Toronto Blue Jays third baseman Darwin Barney watches his throw after he forced out Boston Red Sox's Christian Vazquez during the fifth inning of a ba

Boston Red Sox starting pitcher Eduardo Rodriguez, right, walks to the mound with a fresh baseball as Toronto Blue Jays' Steve Pearce rounds the bases

Toronto Blue Jays reliever Ryan Tepera watches a pitch to the Boston Red Sox during the eighth inning of a baseball game at Fenway Park in Boston, Mon

Home plate umpire Chris Segal calls Boston Red Sox's Mookie Betts out at the plate, who was trying to score on a single by Dustin Pedroia, during the

BOSTON (AP) — Steve Pearce hit a solo homer, then added the go-ahead single in the eighth inning in Toronto's 4-3 victory over the Boston Red Sox on Monday night.

The Blue Jays led 3-0 after two innings but Boston scored three in the seventh, tying it when Dustin Pedroia hit Dominic Leone's only pitch off the Green Monster to tie it. One run scored, and Mookie Betts was thrown out at the plate.

Toronto went back in front in the eighth when Pearce singled to score pinch-runner Ezequiel Carrera from third.

Ryan Tepera (5-1), who started the eighth, was credited with the victory even though Leone was the pitcher of record when the winning run scored. Baseball rule 9.17 (c) instructs the official scorer not to award a victory to a reliever who makes a short, ineffective appearance.

Roberto Osuna pitched the ninth for his 23rd save.

Heath Hembree (1-3) took the loss.