Brandon Morrow pitched six innings, Edwin Encarnacion hit a grand slam and the Toronto Blue Jays beat the Seattle Mariners 7-0 on Saturday, snapping a four-game losing streak.

Morrow (2-1) won his second straight start and improved to 3-0 with a 1.89 ERA in three starts against the team that drafted him fifth overall in 2006.

The right-hander allowed five hits, walked none and struck out a season-high nine.

Encarnacion went 2 for 3 with a double and a sacrifice fly, matching his career-high with five RBIs. Encarnacion's first-pitch drive to right off Hisashi Iwakuma in the eighth was his team-leading sixth home run and his fourth career grand slam.

The loss ended Seattle's season-best four-game winning streak.

Morrow set down 10 straight batters after Kyle Seager's leadoff double in the second inning, a streak that ended when Michael Saunders hit a one-out double in the fifth. Miguel Olivo reached when Kelly Johnson dropped an infield popup, with Saunders taking third on the play, but Morrow escaped by striking out Brendan Ryan and getting Chone Figgins to ground out.

Seager and Ichiro Suzuki singled off Morrow in the sixth, but he ended his afternoon by striking out Jesus Montero on a 97 mph fastball.

Jason Frasor, Darren Oliver and Carlos Villanueva each worked one inning of relief as Toronto got its first shutout of the season.

Toronto scored three runs in the third against Mariners right-hander Kevin Millwood. Yunel Escobar singled and went to third on Johnson's base hit, then scored when Seager couldn't handle Jose Bautista's hard grounder. Lind followed with a ground-rule double to left and Encarnacion capped the rally with a sacrifice fly.

Lind's extra-base hit was his first since he doubled in a 9-5 win at Kansas City on April 21.

Millwood (0-2) lost his second straight start, allowing three runs, one earned, and seven hits in a season-high seven innings. He walked two and struck out four.

The defeat dropped Millwood to 2-8 with a 4.83 ERA in 13 career starts against the Blue Jays. He's 1-6 in nine starts at Rogers Centre, and has not won in Toronto since 2006.

Notes: Morrow was traded to Toronto in December 2009 for RHP Brandon League and OF Johermyn Chavez. ... An MRI of Blue Jays OF Travis Snider's injured right wrist was negative, but he's expected to miss the next seven days to rest after jamming his wrist on a play in the outfield Thursday for Triple-A Las Vegas. ... Seattle LHP Jason Vargas (3-1) faces Toronto RHP Henderson Alvarez (0-2) in Sunday's series finale.