The Mets appeared poised for a letdown.

After finishing the weekend with back-to-back wins over the defending champion Los Angeles Dodgers, the Mets struggled for seven innings Monday to get anything going against the cellar-dwelling Chicago White Sox.

Ex-Mets starter Adrian Houser shut them out for six-plus innings.

The Mets left the bases loaded in the seventh.

They were 0-for-5 with runners in scoring position going into the eighth.

But as they have so often this season, the Mets found a way to win.

Juan Soto’s sacrifice fly tied the game in the eighth and Francisco Lindor’s walk-off sacrifice fly won it in the ninth, giving the Mets a 2-1 victory at Citi Field on Memorial Day.

The Mets (33-21) trailed 1-0 through seven innings, but No. 9 hitter Francisco Alvarez led off the eighth with a single against hard-throwing left-handed reliever Cam Booser.

After a Lindor strikeout, Brandon Nimmo’s single put runners at the corners for Soto.

Soto sent a 1-1 sweeper deep enough into left field to score pinch-runner Luisangel Acuña from third, tying the game with two outs.

The Mets would load the bases before Brett Baty lined out against right-hander Steven Wilson to end the eighth.

Tyrone Taylor led off the ninth with a double against Wilson, and after an intentional walk to Jeff McNeil and a single by Luis Torrens that loaded the bases, Lindor lifted a first-pitch sweeper into right field for the game-winner.

The late-inning drama followed a gem by Houser, who pitched for the Mets last season after being acquired, along with Taylor, in a December 2023 trade with the Milwaukee Brewers.

Houser made only six starts before he was demoted to the Mets’ bullpen and totaled 23 appearances before he was released last July. He finished his Mets career with a 1-5 record and a 5.84 ERA.

Following his release, Houser pitched in the minor-league systems of the Chicago Cubs, Baltimore Orioles and Texas Rangers, but he did not appear in the majors with any of them.

The Rangers released him on May 15, and Houser signed with the White Sox last Tuesday. Houser made his team debut that same day, hurling six shutout innings in a 1-0 win over the Seattle Mariners.

Houser remained hot Monday, limiting the Mets to three hits over six-plus scoreless innings.

He at one point retired 16 consecutive batters, using a sinker, a swing-and-miss changeup and a four-seamer he dialed up to 97 mph.

The Mets got another solid start from Clay Holmes, who limited light-hitting Chicago to one run in 5.2 innings over a career-high 102 pitches.

The White Sox’s only run against Holmes came in the fourth inning. After Mike Tauchman led off with a walk, Miguel Vargas ripped a double just beyond the outstretched glove of Taylor to put two runners in scoring position.

Andrew Benintendi then lifted a sacrifice fly to the left-field warning track to give Chicago a 1-0 lead.

The White Sox threatened again in the sixth, loading the bases against Holmes with two outs, but reliever José Buttó escaped the jam with an Edgar Quero groundout.

The sinker-balling Holmes surrendered four hits and three walks with three strikeouts and 10 groundouts. The converted reliever had not previously thrown more than 93 pitches in an outing.

Monday marked the third game in a row that the Mets failed to score a run with Holmes in the game. They were shut out in his previous two starts.

At 17-37, the White Sox are again the worst team in the American League, but the Colorado Rockies (9-45) are on pace this year to shatter Chicago’s dubious single-season record for losses.

The three-game series continues Tuesday night, with Tylor Megill (3-4, 3.56 ERA) scheduled to pitch for the Mets and Shane Smith (1-3, 2.36 ERA) set to start for Chicago.