Seattle’s Yonder Alonso gets ready to face his former team — the Oakland Athletics — in his Mariner debut Tuesday night in Oakland, California. (AP Photo/Marcio Jose Sanchez)

Seattle’s Yonder Alonso gets ready to face his former team — the Oakland Athletics — in his Mariner debut Tuesday night in Oakland, California. (AP Photo/Marcio Jose Sanchez)

Alonso joins the Mariners for start of series against his former club

A change of perspective.

The Seattle Mariners get their first look Tuesday at first baseman Yonder Alonso as a teammate, and he gets his first look at his former teammates from the opposing dugout at the Oakland Coliseum.

Alonso is expected to be in the lineup when the Mariners open a two-game series against the Athletics at 7:10 p.m. The Mariners acquired him Sunday from Oakland in a trade for outfielder Boog Powell.

Ironically, Powell is returning to the Athletics, and he changed dugouts Monday night at Cheney Stadium to play for Triple-A Nashville against Tacoma. He went 2-for-6 with a walk, but the Rainiers won 8-7 in 12 innings.

Alonso appears to welcome the change in scenery.

“Great bunch of guys that I can’t wait to go to battle with every night…,” he said in a twitter post shortly after the trade. “Excited to be there and make this push for the playoffs.”

Manager Scott Servais indicated Alonso, a left-handed hitter, will see platoon duty at first base with Danny Valencia, a former Oakland teammate and an off-season workout partner in Miami.

Analytically, the platoon splits make sense.

Alonso, 30, is a left-handed hitter who entered Tuesday batting .286 this season with 18 homers and 40 RBI in 299 plate appearances against right-handed pitchers but only .188 with four and nine in 72 plate appearances against lefties.

Valencia, 32, is a right-handed hitter who entered Tuesday batting .309 with five homers and 25 RBI in 109 plate appearances against left-handers. He entered Tuesday batting .258 with eight and 33 in 309 plate appearances against right-handers.

It’s important to note that a strict platoon arrangement — if that’s what this is — means significantly less playing time for Valencia, whose overall performance doesn’t merit such a reduction.

Further, Valencia and Alonso are pending free agents. The reality is this is a salary drive year for both players, and it’s hard to build big numbers in a platoon arrangement, particularly for the right-handed hitter (Valencia).

The Mariners will likely point to Valencia’s versatility because he can play third base or right field. Also left field or second base in a pinch. Even so, it’s uncertain how much playing time will be available at those spots. So we’ll see.

Maybe this goes down without a hitch.

Talk to us

> Give us your news tips.

> Send us a letter to the editor.

> More Herald contact information.

More in Sports

Archbishop Murphy’s Henry Gabalis shakes a tackle to run the ball into the end zone for a touchdown during the 2A state football semifinal game against Anacortes on Nov. 29, 2025 in Everett, Washington. (Olivia Vanni / The Herald)
Archbishop Murphy aims to complete dream season with state title

The Wildcats football team faces legendary Tumwater in the Class 2A championship game Saturday.

State football championship preview: Experts pick winners

Our trio takes a crack at picking this week’s gridiron games.

Meadowdale boys, Jackson girls pick up basketball wins Friday.

Prep roundup for Friday, Dec. 5: (Note for coaches/scorekeepers: To report results… Continue reading

Lake Stevens head coach Tom Tri hugs Lake Stevens’ Kenny Buckmiller during the 4A state football quarterfinal game against Moses Lake on Nov. 22, 2025 in Lake Stevens, Washington. (Olivia Vanni / The Herald)
Lake Stevens football dialing up for state championship game

The Vikings will play for third 4A title in four years against Sumner on Saturday.

Vote for The Herald’s Prep Athlete of the Week for Nov. 23-29

The Athlete of the Week nominees for Nov. 23-29. Voting closes at… Continue reading

Seahawks defensive end DeMarcus Lawrence (0) pulls down Minnesota Vikings quarterback Max Brosmer (12), who threw a pick-six on the play during a game at Lumen Field in Seattle, Washington on Sunday, Nov. 30, 2025. (Photo courtesy of the Seattle Seahawks)
DeMarcus Lawrence has made Seahawks’ D-line dominant

DeMarcus Lawrence and Leonard Williams have been in the NFL, combined, for… Continue reading

Snohomish’s Deyton Wheat blocks a shot by Mountlake Terrace’s Svayjeet Singh during the 3A district loser-out playoff game on Thursday, Feb. 13, 2025 in Mountlake Terrace, Washington. (Olivia Vanni / The Herald)
Snohomish knocks off Lake Stevens at home

Deyton Wheat and Hudson Smith star as the Panthers picked up a close win on Thursday night.

Marysville Pilchuck boys wrestling picks up statement win

The Tomahawks drop just one bout against Lakewood on Thursday night.

Jackson notches multiple state-qualifying times

The Timberwolves hit their marks in the 200 medley relay and 100 breaststroke on Thursday.

Stanwood girls basketball escapes with win at Arlington

Eagles’ missed free throws, Wortham’s go-ahead jumper lift Spartans to 37-36 win on Wednesday.

Archbishop Murphy’s Brooke Blachly makes a three point shot during the game against Meadowdale on Friday, Jan. 3, 2025 in Lynnwood, Washington. (Olivia Vanni / The Herald)
Archbishop Murphy girls open season with solid win over Snohomish

Brooke Blachly hits five 3-pointers Wednesday to kick off an anticipated senior campaign.

Tenison Woods and Lake Stevens high-five after their game on Dec. 2, 2025 in Lake Stevens, Washington. (Olivia Vanni / The Herald)
Lake Stevens basketball hosts Australian cultural exchange

The Vikings boys and girls share court and candies with Mount Gambier’s Tenison Woods on Tuesday.

Support local journalism

If you value local news, make a gift now to support the trusted journalism you get in The Daily Herald. Donations processed in this system are not tax deductible.