TORONTO -- Edwin Encarnacion hit his fifth career grand slam, J.P. Arencibia homered and drove in four runs and the Toronto Blue Jays beat Baltimore 12-6 on Thursday night, spoiling the debut of Orioles right-hander Kevin Gausman.
Brandon Morrow (2-3) allowed six runs and a season-high 10 hits in seven-plus innings. He walked one and struck out five.
Brett Cecil and Brad Lincoln each worked one inning of scoreless relief as Toronto won for the third time in four games.
Baltimore’s Chris Davis hit his major league leading 15th home run, a leadoff shot in the fourth. Nick Markakis and Adam Jones hit back-to-back homers off Morrow in the eighth but it wasn’t enough for the Orioles, who lost for the seventh time in nine games.
Baltimore’s Manny Machado went 3 for 4 with three doubles, boosting his major league-leading total to 21.
Machado gave the Orioles an early lead with a two-run double in the third. Davis made it 3-0 by homering on Morrow’s first pitch of the fourth, but the Blue Jays rallied with two runs off Gausman in the bottom half. Adam Lind and Arencibia led off with consecutive doubles and Emilio Bonifacio hit a sacrifice fly.
Arencibia put the Blue Jays in front with a two-out, first pitch drive in the fifth, his 11th.
The fourth overall pick in the 2012 draft, Gausman allowed four runs and seven hits in five innings. He walked two and struck out five.
Gausman (0-1) is the 11th different pitcher to start for Baltimore this year. The Orioles used 12 different starters all of last season.