OAKLAND -- Khris Davis' team-leading 18th home run helped the A's nail down a 4-3 victory to complete a four-game sweep of the Yankees at the Coliseum on Sunday afternoon.
Right-hander Jharel Cotton did his part with 6 1/3 innings of three-run ball for the A's, who have swept the Yankees in four games three times in 28 tries since moving to Oakland in 1968, the last coming July 19-22, 2012, at the Coliseum.
"It feels great," Davis said. "Confidence boost, for sure. That's a great team on the other side, they've got a lot of power guys, and we just battled and battled. It showed how relentless we can be."
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Video: NYY@OAK: Cotton strikes out six over 6 1/3 innings
The Yankees, who have lost six in a row and went 1-6 on their West Coast swing, got four innings from right-hander Luis Cessa. Making his first big league start of the season in place of an injured Carsten Sabathia, Cessa allowed all four runs in the third.
"The one inning, he got the ball up and that was the difference," Yankees manager Joe Girardi said. "The first two innings, he was down in the zone. He got some balls up and it led to some balls in the gap and the home run, and that was the difference."

Matthew Holliday and Didi Gregorius hit solo shots off Cotton, while Aaron Judge chipped in with an RBI single for the Yankees, who are still in first place in the American League East.
The A's improved to 22-13 at home, compared to 9-25 on the road, after picking up their first series sweep of any kind since Sept. 12-15, 2016, at Kansas City.
"Any time you beat a team of their caliber four times in a row ... it's tough to sweep a three-game series, let alone a four-game series, and there was basically contributions from everybody in the series," A's manager Bob Melvin said. "So that kind of brings everybody together. All in all, pretty satisfying."

MOMENTS THAT MATTERED
Pinder delivers: The A's waited until the third to collect their first hit, stringing together three in a row with one out. Josh Phegley got things going with a base hit, advancing to third on Matt Joyce's double. That's when rookie Chad Pinder stepped to the plate, fouling off four consecutive pitches before sending the next one, a 1-2 slider, into right-center field for a two-run game-tying double. One out later, Davis smashed a Statcast-estimated 442-foot homer to center field, a two-run shot that gave the A's a lead they would never surrender.

"That was huge," Joyce said. "Obviously we had to get something going. Phegley did a great job poking something up the middle, I stayed on a ball and hit it in the gap, and Pinder did an amazing job. That was an awesome at-bat. I had a great view from second base. Ended up staying on a slider off the plate, hit it in the gap. Just great, great hitting right there."
What a relief: In a tightly contested series that has seen a plethora of lead changes, the Yankees were gifted an opportunity to shift the momentum in their favor when right-hander Ryan Madson hit Judge with a pitch with one out in the eighth. Madson proceeded to fall behind Holliday, 3-0, before working his way back into the count and inducing an inning-ending double play to preserve Oakland's one-run lead.

Lefty Sean Doolittle worked around a one-out, two-base throwing error by Pinder in the ninth to lock down the save.

QUOTABLE
"It's not what you want, obviously. You know at some point you're going to go through some tough spells, and we just went through one. We've got to bounce back on Tuesday." -- Girardi, on the Yanks' six-game losing streak
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SOUND SMART WITH YOUR FRIENDS
First-pitch temperature registered at 90 degrees, marking the warmest game day at the Coliseum since June 20, 2008 (91). The record is 92.
"This was definitely one of the hottest games that I can ever remember here," Doolittle said. "But it gets you loose faster in the bullpen, that's for sure."
UPON FURTHER REVIEW
The fair call on Gregorius' home run in the fourth was confirmed via a crew chief review.

In the bottom half of the frame, the A's asked for a replay review of the out call on Jaycob Brugman's stolen base attempt of second base. The call was confirmed, ending the inning.

YANKS' CHAPMAN RETURNS
A bright spot for the Yankees in Sunday's loss was the return of closer Aroldis Chapman, who was activated before the game and pitched a perfect eighth after missing a month with left shoulder rotator cuff inflammation.

"It's big," Girardi said. "He said he was rusty, but he looked pretty good to me today. It's a big power arm to have back and it lengthens our bullpen." More >
ONE FOR MOM, NOW ONE FOR DAD
Holliday's homer in the second gave him one on Father's Day to add to the one he hit on Mother's Day against the Astros. He's one of seven players in the Majors to hit one on both holidays this year. He's also just the fourth player in Yankees history to hit one on both holidays in the same season since Father's Day officially became a national holiday in 1972. The other three Yankees were Graig Nettles (1973), Jason Giambi (2004) and Brian McCann (2015).
Told about it after the game, Holliday joked, "I think it shows that I love my mom and dad more than anybody else in the league."
WHAT'S NEXT
Yankees: The Yankees will get Monday off as they return to the Bronx before hosting the Angels at 7:05 p.m. ET on Tuesday. Right-hander Michael Pineda (7-3, 3.71 ERA) will look to keep rolling at Yankee Stadium, where he's 6-1 with a 1.96 ERA in seven starts this year.
A's: Seeking his first win, right-hander Daniel Gossett will make his second Major League start Monday against the Astros. First pitch of the four-game series opener is set for 7:05 p.m. PT at the Coliseum.
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