CLEVELAND (AP) — Trevor Bauer has been solid over his last six starts, except when facing the Seattle Mariners.

The right-hander was rocked for six runs in 3 2-3 innings, including a grand slam by Kyle Seager, as Seattle routed the Cleveland Indians 9-3 on Wednesday.

Bauer (5-3) allowed four hits and tied his season high with five walks in his shortest outing of 2015. He is 3-2 with a 2.95 ERA in six games since May 14, but Seattle has been responsible for both losses.

“I don’t think it’s anything about them in particular,” said Bauer, who is 0-4 with a 6.75 ERA in four career starts against the Mariners. “If you look at my stats, every time I pitch, I tend to have one bad inning with walks. Tonight, they cost me, and it sucked.”

Seager’s two-out grand slam gave Seattle a 4-0 lead in the third. It occurred after Bauer loaded the bases on three walks, then was visited by pitching coach Mickey Callaway.

Two pitches later, Seager drilled his delivery over the right field wall. Bauer made 38 of his 86 pitches in the frame.

“That’s why Mickey went out to the mound, to try and hold things right there, but Trevor gives up the grand slam,” Indians manager Terry Francona said. “You walk the bases loaded, so Seager was sitting on a fastball, and that’s what he got. And it got worse from there.”

The Mariners made it 6-0 in the fourth on a two-run double by Logan Morrison before Bauer got the hook. The enigmatic hurler faced 20 batters, eight of whom scored or were stranded in scoring position.

“If I knew what happened tonight, I’d fix it,” Bauer said. “I walked a couple guys and gave up a homer. That about sums it up.”

Seattle right-hander Taijuan Walker (3-6) went six innings to beat Bauer for the second time in 13 days.

His throwing error in the fourth allowed David Murphy to score Cleveland’s initial run.

Rookie third baseman Giovanny Urshela collected his first major league RBI with a groundout in the ninth for the Indians, who went 1 for 17 with runners in scoring position and left 10 on base.

Cleveland dropped its third straight game and fell into last place in the AL Central Division.

“What do I take away from this game? That we lost,” Francona said. “We’re giving ourselves chances to score, but we’re just not cashing them in.”

HISTORY LESSON

Indians 2B Jason Kipnis extended his home hitting streak to 20 games, which equals the second longest at Progressive Field. Rangers SS Elvis Andrus set the record with a 27-gamer from Aug. 11, 2009 through May 26, 2015. The ballpark, which was originally named Jacobs Field, opened in 1994.

TRAINER’S ROOM

Mariners: OF Nelson Cruz (back spasms) did not play after tweaking his back Tuesday while swinging at a pitch. The AL home run leader said he plans on returning for the series finale Thursday.

Indians: RHP Josh Tomlin (right shoulder surgery) threw an afternoon bullpen session. He has been on the 60-day disabled list since March 29, but could begin a rehab assignment this month.

UP NEXT

Mariners: LHP J.A. Happ seeks to extend his nine-start unbeaten streak, which dates back to his lone loss of the season on April 17. He is 3-0 with a 3.46 ERA in the interim.

Indians: RHP Shaun Marcum defeated Seattle on May 30, allowing two runs in 5 1-3 innings at Safeco Field. He suffered his first loss with the Indians in his last start.