Moustakas, Infante lead Royals past Mariners 8-2 in Duffy's return

SEATTLE -- Kansas City is getting used to this. Big hits, big innings and yet another victory, this time 8-2 over the Seattle Mariners on Wednesday night.

Mike Moustakas hit a two-run home run and Omar Infante had a three-run double to highlight the Royals' seven-run fourth inning. Kansas City pounded out 13 hits, the 17th time this season they've had that many or more.

"This is great for a team that's built off pitching and defense," said first baseman Eric Hosmer. "For our offense to put up those types of numbers, it's great for us. It makes us a complete team.

"As an offense, we grew a lot last year, through the playoffs and this year. We're getting good at-bats. We're doing a good job and not trying to do too much."

The defending American League champions -- with seven starters leading the All-Star balloting -- were subdued for three innings by Mariners starter Roenis Elias (4-5).

Then Alcides Escobar opened the fourth with a single to right. Moustakas followed with his shot just over the right-field wall, his seventh, on a 3-2 fastball.

"Moose got it going for us," Hosmer said. "When we're struggling like that, he usually takes a big swing, double or home run, to let us all exhale a little bit. We put together some good at-bats after that."

The Royals would score five more, all with two outs. Infante unloaded the bases with his double to left, then Jarrod Dyson and Escobar each followed with left-field RBI doubles.

Escobar had three hits -- two in the fourth -- and scored twice. Moustakas had three hits and two RBIs. Infante also had three hits to go along with his three RBIs.

"I'm not sure what happened," Elias said through an interpreter. "I felt good. It was just a bad day for me."

Mariners manager Lloyd McClendon was equally perplexed.

"We are just trying to figure that out," he said. "He was throwing a whale of a ballgame and he just fell apart in the fourth inning and couldn't get it back together."

Danny Duffy, in his first start for Kansas City since a rehab stint, was one out away from being the pitcher of record but couldn't close the fifth. He gave up a sacrifice fly to newly promoted Franklin Gutierrez and another run scored on an error.

"I want to really try to get him through that game, give him the win," Royals manager Ned Yost said. "But I wasn't going to jeopardize anything. He just didn't have much left and it affected his command."

Ryan Madson (1-1) worked 1 1/3 innings of hitless relief for the win, his first since 2011.

"I'd rather let Duffy have it," Madson said. "He obviously earned it more than I did. He threw well, set the tone and made it easy for us to come in there and just pitch."

This was the 42nd game in 44 days for the Mariners. They get their first day off Thursday since June 8.

TRAINER'S ROOM

Mariners: RHP Hisashi Iwakuma (strained lat) will have his second rehab start Thursday for Triple A Tacoma. He is expected to throw between 70 and 75 pitches. He likely will have one more before the club considers his next step. LHP James Paxton (strained middle finger) will play catch Thursday. "That's a step in the right direction," manager Lloyd McClendon said.

Royals: CF Lorenzo Cain slightly strained his hamstring running down a Dustin Ackley flyball in the seventh inning Tuesday. As a precaution, manager Ned Yost held him out to give him two full days (off day Thursday) to rest it.

BIG THREE OF SORTS

Walker, Elias (before his start Wednesday) and rookie Mike Montgomery have stepped up since Mariners veteran starters Iwakuma and James Paxton landed on the DL. Over each of their previous three starts (9), they were a combined 7-1 record with a 4.71 ERA, 14 walks and 43 strikeouts. "It's a big lift when you think Iwakuma and Paxton are out X amount of time," McClendon said. "If I had hair, I'd be pulling it out. These guys have come in and thrown some quality, quality innings and really settled our rotation quite nicely."

LEFT-SIDE ISSUES

The Royals have not built the best record in the American League by facing left-handers. They were 10-13 before facing Elias and had lost seven straight.

They chased Elias in the fourth inning and went on to their first win against a left-handed starter since May 17.