Dominic Canzone clubbed his first career grand slam and Randy Arozarena produced a four-hit, three-RBI game in support of Bryan Woo, who worked six quality innings, as the visiting Seattle Mariners claimed a 10-2 victory over the slumping Houston Astros on Tuesday.

The Mariners won their ninth consecutive game over the Astros, whose skid reached four. Arozarena socked a two-run home run in the second to get Seattle rolling, and when Houston clawed back to tie the game, Canzone delivered the knockout blow in the fourth.

Astros right-hander Tatsuya Imai (1-1) made his first start since recording only one out against the Mariners on April 10. He landed on the injured list two days later with arm fatigue, and his return to the rotation unraveled quickly amidst the control issues that plagued him last month.

Arozarena made Imai pay for issuing a leadoff walk to Cal Raleigh in the second by smacking his fourth home run to left field. Imai surrendered another hit in that frame before inducing Julio Rodriguez to ground into a double play in the third that erased Brendan Donovan. But the bottom fell out from beneath Imai in the fourth when he loaded the bases with no outs.

After hitting both Arozarena and Luke Raley with pitches, Imai issued a four-pitch walk to J.P. Crawford. Canzone followed by drilling a first-pitch slider from Imai 381 feet to right that supplied the Mariners a 6-2 lead. The grand slam marked the fourth homer of the season for Canzone.

Arozarena (four runs) doubled and scored in the fifth and added an RBI double in the seventh.

Imai allowed six runs on five hits and three walks with three strikeouts over four innings.

Woo (3-2) surrendered an RBI single to Braden Shewmake in the second and a game-tying RBI double to Christian Walker in the third that enabled Walker to snap an 0-for-17 skid. Woo responded by retiring the final 11 batters he faced. The right-hander matched a season high with nine strikeouts.

Raleigh snapped an 0-for-38 skid -- the longest hitless streak in the majors this season -- with a seventh-inning single.