Brett Phillips hit a tying home run off Liam Hendricks in the ninth inning, Adalberto Mondesi followed with an RBI double and the Kansas City Royals beat Oakland 6-5 on Monday night to end the Athletics' six-game winning streak.

Oakland's lead over Tampa Bay for the top AL wild card was cut to one game. Cleveland is 1½ games behind the Rays.

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Kansas City Royals' Whit Merrifield, right, celebrates with Jorge Soler (12) after scoring the game-winning run against the Oakland Athletics in the ninth inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Brett Phillips hit a tying home run off Liam Hendricks in the ninth inning, Adalberto Mondesi followed with an RBI double and the Kansas City Royals beat Oakland 6-5 on Monday night to end the Athletics' six-game winning streak.

Kansas City Royals' Jorge Soler celebrates after hitting a home run against the Oakland Athletics in the fourth inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Phillips homered on a 2-0 fastball from Hendriks (4-3) with one out in the ninth, Hendriks' sixth blown save in 28 chances.

Oakland Athletics' Khris Davis swings for an RBI single off Kansas City Royals' Kevin McCarthy in the eighth inning of a baseball game, Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Jorge Soler homered leading off the fourth, tying injured Los Angeles Angels star Mike Trout for the AL lead with his 45th home run.

Kansas City Royals' Kevin McCarthy pauses in the eighth inning of a baseball game against the Oakland Athletics after giving up an RBI single to A's Khris Davis, Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

ONE MORE THAN RICKEY

Oakland Athletics' Marcus Semien, right, is congratulated by Sean Murphy (12) after hitting a two-run home run against the Kansas City Royals in the second inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

BEGINNING OF THE END

Khris Davis' RBI single off Kevin McCarthy (4-2) gave Oakland a 5-4 lead in the eighth.

Kansas City Royals' Whit Merrifield, right, celebrates with Jorge Soler (12) after scoring the game-winning run against the Oakland Athletics in the ninth inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Kansas City Royals' Whit Merrifield, right, celebrates with Jorge Soler (12) after scoring the game-winning run against the Oakland Athletics in the ninth inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Phillips homered on a 2-0 fastball from Hendriks (4-3) with one out in the ninth, Hendriks' sixth blown save in 28 chances.

Whit Merrifield reached when center fielder Ramón Laureano allowed his drive to pop out of the pocket of his glove at the front of the warning track for an error. Mondesi sliced an opposite-field double to left.

Marcus Semien singled leading off the bottom half for Oakland but Ian Kennedy retired his next three batters for his 30th save in 35 chances, giving the Royals' Ned Yost his 1,200th win in 16 seasons as a major league manager. At 56-95, the Royals are trying to avoid their second straight 100-loss season.

Kansas City Royals' Jorge Soler celebrates after hitting a home run against the Oakland Athletics in the fourth inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Kansas City Royals' Jorge Soler celebrates after hitting a home run against the Oakland Athletics in the fourth inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Jorge Soler homered leading off the fourth, tying injured Los Angeles Angels star Mike Trout for the AL lead with his 45th home run.

Alex Gordon had two RBIs.

DEFENSIVE DIMES

Laureano made back-to-back strong throws to the plate in the first, including one on the fly, to keep Mondesi at third after Mondesi's RBI triple.

Oakland Athletics' Khris Davis swings for an RBI single off Kansas City Royals' Kevin McCarthy in the eighth inning of a baseball game, Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Oakland Athletics' Khris Davis swings for an RBI single off Kansas City Royals' Kevin McCarthy in the eighth inning of a baseball game, Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

ONE MORE THAN RICKEY

Semien's home run was his 29th while batting first in the order, breaking the A's record he shared with Hall of Famer Rickey Henderson.

ROUGH STARTS

Oakland starter Tanner Roark struck out eight in 4 2/3 innings but allowed four runs and seven hits. Kansas City's Glenn Sparkman also had a short night and allowed four runs in 4 1/3 innings. He threw two wild pitches and hit a batter.

Kansas City Royals' Kevin McCarthy pauses in the eighth inning of a baseball game against the Oakland Athletics after giving up an RBI single to A's Khris Davis, Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Kansas City Royals' Kevin McCarthy pauses in the eighth inning of a baseball game against the Oakland Athletics after giving up an RBI single to A's Khris Davis, Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

BEGINNING OF THE END

There were concerns the game might be postponed due to field conditions following an NFL game Sunday and rain Monday. The infield still had football markings and there were large dark patches of dead grass in center field, which bore the weight of stands that were removed overnight. It's the final time the A's will have to deal with the situation after having shared the Coliseum with the Oakland Raiders since 1995. The Raiders won't play at the Coliseum again until Nov. 3, well after the A's season has ended, and are moving to Las Vegas next year.

TRAINER'S ROOM

Oakland Athletics' Marcus Semien, right, is congratulated by Sean Murphy (12) after hitting a two-run home run against the Kansas City Royals in the second inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Oakland Athletics' Marcus Semien, right, is congratulated by Sean Murphy (12) after hitting a two-run home run against the Kansas City Royals in the second inning of a baseball game Monday, Sept. 16, 2019, in Oakland, Calif. (AP PhotoBen Margot)

Athletics: RHP Mike Fiers is getting further testing for nerve irritation in his right arm but the A's are hopeful their top pitcher can throw a bullpen Tuesday and won't have to miss his turn in the rotation.

UP NEXT

A's LHP Brett Anderson (12-9, 4.07 ERA) has already set a career high for wins going into Tuesday's start against the Royals. RHP Jorge López (4-7, 6.09) is riding a three-game road winning streak for Kansas City.

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