PHOENIX — Josh Naylor hit a game-ending grand slam in the 11th inning and the Arizona Diamondbacks beat the Seattle Mariners 8-4 on Monday night after losing closer Justin Martinez with two outs in the ninth and then blowing a four-run lead.
Corbin Carroll launched a leadoff homer and Naylor had three hits and five RBIs for the Diamondbacks, who stopped a three-game skid.
Martinez entered to start the ninth with Arizona leading 4-0 and struck out Jorge Polanco and Randy Arozarena to begin the inning. The right-hander then walked Dylan Moore on a full count and threw a pitch to Donovan Solano before calling for an athletic trainer.
Jeff Brigham came in and gave up RBI singles to Solano and Cole Young before Dominic Canzone tied it with a 450-foot, two-run drive to right field for his first homer this season.
Juan Morillo retired slugger Cal Raleigh with two runners aboard to finally end the inning.
Morillo then pitched a perfect 10th and Jalen Beeks (2-0) got three straight outs in the 11th.
Naylor homered to right-centre with one out on a 1-2 pitch from Carlos Vargas (1-5), who was working his second inning in relief. Vargas loaded the bases with a walk to Geraldo Perdomo that followed an intentional walk to Ketel Marte.
