OAKLAND -- Two former A's -- Yonder Alonso and Danny Valencia -- provided big blasts to power the Mariners to a 6-3 win in Oakland on Tuesday night.
Valencia stepped to the plate with two on in the seventh against A's reliever Ryan Dull and drilled a fastball to center for a go-ahead three-run homer. After being traded from Oakland to Seattle last offseason, it's the second homer against the A's he's hit this season.
Seattle added another run in the seventh when Ben Gamel singled home James Beckham. The Mariners got their first two runs via Alonso's 27th homer in the fourth. Valencia was acquired by Seattle from Oakland last winter and Alonso was added in an August trade.
"It's pretty cool," Valencia said. "It's always nice to be in the lineup with him. We've been playing together since high school. For both of us to come back here against our former team and do well and help the team win, it feels good."

The A's took the lead in the sixth when Khris Davis hit a two-run homer to right-center off Seattle starter James Paxton. The homer was Davis' 42nd, matching his career high from last season.
"Another really impactful homer today," A's manager Bob Melvin said. "If we can sneak out of that next inning, we've got a chance to win the game because of his homer. ... One of the best pure power hitters in the league, to any field."

Davis' blast knocked Paxton out of the game, the only other damage against him being a leadoff homer by A's shortstop Marcus Semien. The left-hander allowed three runs on six hits and struck out five in 5 1/3 innings.

Oakland starter Daniel Mengden took the loss, having allowed the two batters to reach base in the seventh before Valencia's homer. He gave up four runs in six innings after entering the night with 16 consecutive scoreless innings.
"He threw good again," Melvin said. "[He] gave up a hit and a walk and it was time to go get him. [But he] pitched pretty similar to the way he did the last two times out. He's really come on strong here at the end."

MOMENTS THAT MATTERED
Alonso attacks A's: Alonso hit a two-run homer off of Mengden in the fourth, his second homer in as many days. Out of Alonso's five homers since being traded from Oakland to Seattle on Aug. 6, three have come against his former club. He finished the day 2-for-3 with a walk.
"Obviously I was there for a couple years and any time you play against an ex-team, you definitely get up for them and just compete and hopefully things go well for you," said Alonso, who was an American League All-Star for the A's this year. "I've played plenty of games here. I feel comfortable, I like it and I enjoy myself when I'm here."

Beckham's brilliant double play: Making his first start at third base to give Kyle Seager a day off, Beckham used every inch of foul territory in the Coliseum and dove over the tarp to catch Josh Phegley's popup in the seventh. Beckham then got up and fired to second, where Robinson Cano tagged out Renato Nunez for a double play. The nine-year veteran spent the season with Triple-A Tacoma before being added as a September callup. He also went 2-for-4 and scored a run for his first hits with Seattle.
"Obviously in Oakland there's a lot of space and coming here for a couple years, you know that going in," said the longtime White Sox infielder. "You can't really give up on any balls. I knew it was going to be close when he hit it, so it was just get over there and try to find the wall and jump. And it worked out. If you think about a play like that before it happens, you never make it. So you just go make the play and something cool like that happens."

QUOTABLE
"Obviously the play of the game was the Gordon Beckham play. Wow. It doesn't get any better. We joked on the bench that his arms are probably two inches longer than Seager's, so he was able to get that one. Great play, heads up, and he swung the bat well." -- Mariners manager Scott Servais
"A very frustrating loss for us today. Paxton's doing his thing, and we finally get him out of the game and take the lead with a two-run homer, and we can't hold it. That's the frustrating part. A game like that kind of stings. We had a chance to win it and we didn't." -- Melvin
SOUND SMART WITH YOUR FRIENDS
The win was the eighth in a row for Seattle against the A's, a new club record against their AL West rivals.
The A's have hit 128 of their 228 home runs at home this year, breaking the Coliseum record of 126 set in 2000.
UPON FURTHER REVIEW
The Mariners successfully challenged that Cano tagged Nunez before Nunez reached second base when tagging up in the seventh, thus making Beckham's catch and throw into a double play.

WHAT'S NEXT
Mariners:Erasmo Ramirez (5-6, 4.35 ERA) gets the start in Wednesday's 12:37 p.m. PT series finale in Oakland. The 27-year-old right-hander is coming off his best start since being acquired from the Rays on July 28 as he held the Indians to one run on three hits over eight innings with 10 strikeouts. He's 0-6 with a 5.33 ERA in nine career starts against the A's.
A's: Right-hander Kendall Graveman (6-4, 4.17 ERA) will take the mound in the home finale for Oakland at 12:37 p.m. PT Wednesday. Over his last three starts, Graveman is 2-0 with two runs allowed over 15 innings, which includes a rain-shortened two-inning appearance in Philadelphia on Sept. 16.
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