BOSTON — Franchy Cordero hit a grand slam with two outs in the bottom of the 10th inning, lifting the surging Boston Red Sox to an 8-4 victory over the Seattle Mariners on Sunday.
Trevor Story continued his recent power surge with his fifth homer over the Green Monster in four days and Christian Arroyo added a solo shot for Boston, which posted its season-high fifth straight victory and completed a four-game sweep over Seattle.
The Red Sox trailed 4-3 when pinch-hitter Christian Vázquez singled against Andrés Muñoz (1-2) in the 10th, advancing automatic runner Bobby Dalbec. After Kiké Hernández hit a tying single, Vázquez was thrown out at the plate by right fielder Dylan Moore on Rafael Devers’ single, a play upheld by review.
Following an intentional walk and Story’s flyout, Cordero won it with his drive to right on 0-2 pitch. Seattle left fielder Jesse Winker and center fielder Julio Rodríguez stood out in the field in disbelief for a while before slowly walking off as the Red Sox celebrated at home plate.
Adam Frazier had a go-ahead single in the 10th inning for Seattle after Eugenio Suárez’s homer tied it with two outs in the ninth.
Frazier also had a two-run homer for the Mariners, who have lost six of seven and 19 of 25.
With thunder and lightning off to the first base side, Frazier lined an RBI single to center against Jake Diekman (1-0), who earned the victory.
Suárez homered into the Monster seats against Hansel Robles.
The Red Sox nearly wasted a solid outing from Nathan Eovaldi, who rebounded from a historically bad outing by striking out 11 while allowing two runs and four hits over 6.2 innings.
Story lined a 94 mph fastball off Logan Gilbert that barely cleared the top of the 37-foot Monster in the sixth, landing in the first row to make it 3-2.
Story finished the series with the five homers and 13 RBI, going deep three times in the opener and hitting a grand slam on Friday.
Gilbert gave up three runs and five hits in seven innings.
Frazier hit a flyball that hooked around the Pesky Pole.