OAKLAND -- The A's fell short in Tuesday's series opener against the Mariners, as their four-game winning streak ended with a 3-2 loss in 10 innings.
Against A's right-hander Yusmeiro Petit, Jean Segura reached base on a one-out single in the 10th, then scurried home on Guillermo Heredia's ensuing double, as Segura slid headfirst into home for the go-ahead run.
The A's went down in order against Mariners closer Edwin Diaz in the bottom of the 10th, a homecoming spoiled following a 7-3 road swing through the East Coast.
Oakland went 2-for-7 with runners in scoring position and left six on base, unable to deliver in multiple key moments. Seattle had its own struggles in similar situations, before Heredia's tiebreaking double. On that play, center fielder Dustin Fowler kicked the ball around in damp conditions, before firing to relay man Jed Lowrie, whose strong throw home was late.

"It's slick out there, you try and get your feet underneath you and get a good handle on it, because you know you're going to have to get it in, there's going to be a play at the plate," A's manager Bob Melvin said. "So whether or not he would have been safe or not, I'm not sure."
Segura tucked his left arm under the legs of catcher Jonathan Lucroy, who believes the speedy shortstop would have been safe regardless of how the play unfolded.
"I just watched the replay on it. He would have been safe anyways," Lucroy said. "Kicked it around a little bit out there, but it was a good relay, a good throw home, I let the ball travel there, and I think he would have been safe. I watched it, and I could have made the perfect tag and there was no way. He was a foot from the plate when I caught the ball, so he was going to be safe no matter what, I think.
"I knew he was coming in. I didn't really know where I was. I think I got in his way a little bit. I put my foot in front of the plate. I think it would have been an interference call anyways."
Right-hander Trevor Cahill took a no-decision after working seven strong innings. The veteran pitcher cruised through an injury-riddled Mariners lineup, until he issued a one-out walk to Daniel Vogelbach in the seventh, which set the stage for Mike Zunino's game-tying two-run homer. Prior to that, Cahill had only allowed one runner to advance past first base.
Cahill allowed four hits and two walks, striking out three.
"He gave us a chance to win," Lucroy said. "Our offense didn't do anything. We didn't hit. We should've hit more, but we didn't. He kept us in the game, and our offense couldn't put it together."

The A's scored a run in the fourth and another in the fifth, the latter coming on a Marcus Semien RBI single.
SOUND SMART
Semien, who improved to 12-for-32 (.375) with runners in scoring position this season, has recorded three straight multihit games and has 17 on the season.
HE SAID IT
"I think the biggest thing was the walk. You've got a two-run lead, pretty good back end of the bullpen. You don't want give a free pass and get the tying run up there, so I felt bad. Got ahead, and fell back behind, had to throw a strike there, and he put a pretty good swing on it." --Cahill, on the sequence when the Mariners tied the game in the seventh
UP NEXT
The A's will recall right-hander Daniel Gossett from Triple-A Nashville on Wednesday for a start against the Mariners at the Coliseum at 7:05 p.m. PT. Back for a second big league stint this season, Gossett posted a 1.63 ERA in seven games (five starts) with Nashville. Marco Gonzales will start for the Mariners.