They'll finally head their separate ways for a while on Sunday, but not before the two familiar foes play the rubber match of a three-game set in Seattle.
The two clubs played twice in Tokyo to start the season, they played twice in Oakland last week, and on Sunday they'll meet for the final time until June 25.
Graham Godfrey gets the ball for the A's, while Seattle will turn to Blake Beavan. The two righties are each coming off very solid starts in which they weren't given any run support and were dealt tough losses.
For Beavan, holding the heavy-hitting Rangers to just one run in 6 1/3 innings was no small feat, even though Texas came away with a 1-0 victory on Tuesday.
"I think the biggest thing that was working for me [during] my last start was mainly just my fastball," Beavan said. "I probably threw it 85 percent of the time. Just locating my fastball when I needed to and making pitches when I needed to. I think any time you can stop that lineup, keep them grounded at three runs or less, that's something that's just a bonus for yourself as a pitcher."
Now, Beavan faces the A's, who roughed him up last season. He posted a 1-2 mark against Oakland with a 7.56 ERA.
Godfrey was equally unlucky on Tuesday, tossing six innings of two-run ball while his team was shut out. He'll be looking forward to better weather in his second start of the season, after a rain-shortened start against the Royals.
A's: Barton set for day off
A's first baseman Daric Barton will get the day off on Sunday, his first since rejoining the team. Manager Bob Melvin has liked what he's seen from Barton, who was delayed this spring while rehabbing his surgically-repaired right shoulder.
"I'm really pleased with how he's doing," Melvin said. "We're constantly monitoring his shoulder, but the velocity in his swing is better. He looks more aggressive to me than he did last year. Everything about his game looks more aggressive, more confident to me."
Barton has four hits -- one a double -- in 16 at-bats this season. He also has two walks.
Through nine games this year, the A's have already bashed eight home runs. It comes after a 2011 campaign in which they didn't notch their eighth home run until Game 18.
Mariners: Carp's return will shake up roster
Mike Carp is ready to come off the disabled list, and that means it's decision time for Seattle manager Eric Wedge. Carp, who sprained his right shoulder on Opening Day in Tokyo, spent his second day in a rehab stint with Triple-A Tacoma on Saturday.
With Carp's spot on the roster pretty much assured, the decision could come down to infielder Alex Liddi and outfielder Casper Wells.
"We're going to keep the guys up here [who] we feel like [give] us the best chance to win ballgames, and the ones that stay up here are going to be because they continue to do that," Wedge said.
Sunday's game will be the last of 11 straight games within the division to start the season for the M's. They face Cleveland on Tuesday.
Jesus Montero's second-inning home run on Saturday extended his hitting streak to eight games. He has recorded a hit in eight of his nine games with Seattle.
Mariners right fielder Ichiro Suzuki is hitting .327 lifetime against the A's. He has seven hits in 25 at-bats this season (.280).
On Friday night, A's second baseman Jemile Weeks notched his second home run against Seattle this season. He went homerless in the first 90 games of his career, but now has four in his last 16 games.