In a good news/bad news proposition for the Mets, they finish the season with three games against the Braves at Citi Field.

By then, there is a strong chance the Braves won’t be playing for anything and resting key players for the postseason, so that could sound appealing for a Mets team that may need those games for a potential wild-card berth. On the flip side, the Braves own the Mets this season, so who knows?

On Sunday, the Mets couldn’t touch Dallas Keuchel in a 2-1 loss at Citi Field that gave the Braves a three-game sweep and victories in 11 of the past 14 meetings between the teams.

“It was kind of that way last year,” manager Mickey Callaway said, referring to the Braves’ 13-6 record against the Mets in 2018. “We have got to figure it out. They have beat up on us a little bit, and we have been in a lot of the games.”

The Mets (67-63) hadn’t lost three straight home games on the same homestand since April, but now must recover with the Cubs headed into town. The Cubs began the day two games ahead of the Mets for the NL’s second wild-card spot.

The Mets lineup was listless until the ninth, when Pete Alonso doubled and J.D. Davis singled him to third with one out. But only one run scored against Mark Melancon, with Todd Frazier hitting into an RBI fielder’s choice before Joe Panik was retired to end the game. Wilson Ramos had delivered a pinch-hit single to extend the inning after the Mets pulled within 2-1.

“We have opportunities and we squander them, and that’s everybody,” Frazier said. “Our pitching has been doing great so we can’t question that. We’re in every game, so kudos to our pitchers.”

Keuchel frustrated the Mets with seven shutout innings in which he allowed four hits and walked three with seven strikeouts. The veteran lefty pitched six shutout innings against the Mets on Aug. 14 in Atlanta.

“When [Keuchel] gets out of the stretch he is so quick to the plate,” Davis said. “I think that is why he is so effective. Even though he has a fastball that is 88-91 [mph] and that cutter at 90, he is so quick to the plate that it plays a little bit higher than what it is.”

Steven Matz gave the Mets a fourth straight strong start, allowing one run on two hits over six innings with six strikeouts and one walk. The lefty has lowered his ERA from 4.49 to 4.06 over those four starts, two of which came against the Braves.

Josh Donaldson’s second homer of the game, a shot leading off the seventh against Paul Sewald, extended the Braves’ lead to 2-0. The homer was Donaldson’s 32nd of the season and third in the series. Donaldson had homered on a full-count pitch leading off the second to give the Braves their first run.

The Mets’ best early chance came in the second, when Michael Conforto singled and reached second as Adam Duvall booted the ball for an error. But after Davis walked, Keuchel got Frazier to hit into a double play. Juan Lagares walked to extend the inning, but Rene Rivera was retired.

In the seventh, Rivera struck out against Keuchel to end the inning with a runner at second base. Callaway said he didn’t use Ramos to pinch hit in that spot because the veteran catcher had been behind the plate five straight days and the manager wanted to avoid using him on defense, if possible.

“This is just a little speed bump, what’s going on right now,” Davis said. “We’re just going to recharge. We haven’t been getting much sleep the last couple of days with that double rain delay [Thursday] and then the extra innings [Friday], we were just kind of drained. That’s no excuse, but we have the day off [Monday] and we’ll recharge and gather our thoughts and get ready to go.”