The Yankees need wins to catch the Blue Jays. The Mets just want to move closer to officially clinching the NL East.

Those plot lines will define the second edition of this year’s Subway Series to be played out at Citi Field starting Friday.

In April, the Yankees won two of three against the Mets. Plenty has changed for both teams since.

A look at the matchups:

Catcher

Brian McCann, with 25 homers and 87 RBIs, has been among the Yankees’ steadiest offensive performers this season, but is enduring a shaky September.

The Mets got Travis d’Arnaud back from the disabled list on July 31 and have watched him reach his potential as one of the game’s best-hitting catchers, with a .911 OPS.

Edge: Even

First base

Mark Teixeira’s leg injury has left the job largely to Greg Bird, who is still trying to figure out how to fly — but he has shown decent power.

Lucas Duda will need a frantic finish if he’s going to repeat with 30 home runs and has largely appeared lost at the plate since returning from the disabled list two weeks ago.

Edge: Even

Second base

Neither Stephen Drew nor Brendan Ryan has provided much consistency for the Yankees at the position, but Drew at least has the potential to clear the fences, with 17 homers.

Daniel Murphy has provided plenty of big hits lately, including the three-run homer he hit in the ninth inning Sunday in Atlanta. His versatility has been a key.

Edge: Mets

Shortstop

Didi Gregorius rebounded from an awful start to his Yankees career and has emerged as a respectable presence in the lineup, complemented by an outstanding glove.

Wilmer Flores has been a valuable piece to the Mets’ lineup since his near-trade to the Brewers at the trade deadline, and Ruben Tejada doesn’t kill the club as a backup.

Edge: Yankees

Third base

Chase Headley is having a brutal September, batting only .179, but overall has brought a level of stability to the position.

David Wright is almost a month into his return from spinal stenosis and hasn’t brought much power to the equation (two homers), but the Mets are happy with the manner in which he’s reached base and driven in runs.

Edge: Mets

Left field

Brett Gardner is having a typically solid year and has already smacked 16 home runs. The veteran outfielder also brings energy to his club.

Michael Conforto is showing glimpses that he can be a special player for the Mets. The rookie hasn’t fizzled under the spotlight of playing in a pennant race.

Edge: Yankees

Center field

Jacoby Ellsbury has been a huge disappointment and that was even before his September disappearing act. The veteran outfielder barely belongs in the lineup at this point (as his .561 OPS since the All-Star break would suggest).

Yoenis Cespedes has been Hank Aaron and Roberto Clemente rolled into one for the Mets, with 17 home runs and terrific defense, since his arrival at the trade deadline.

Edge: Mets

Right field

Carlos Beltran is having a solid season and practically carried the club in August. He likely will have a little extra motivation returning to Citi Field, where Mets fans still have mixed views of his tenure with the club.

Curtis Granderson knows how to get on base and can hit for power. That’s a nice combination.

Edge: Mets

Starting pitching

Masahiro Tanaka, who is scheduled to start Friday, has emerged as the Yankees ace amid season-long turmoil within the team’s rotation. Michael Pineda has struggled since returning from the disabled list, but CC Sabathia is making a late-season surge after a horrible first half.

Steven Matz needs to show the Mets he can pitch beyond the sixth inning, and Noah Syndergaard will welcome a return to Citi Field, where he has posted a 2.15 ERA this season. Matt Harvey, who is scheduled to pitch Sunday, is the wild card given his recent break to decrease his workload.

Edge: Mets

Bullpen

Dellin Betances and Andrew Miller give the Yankees the best 1-2 relief combo in baseball. Inserting Adam Warren into the rotation hurts the pen, though, and Justin Wilson and Chasen Shreve have come down a notch lately.

Jeurys Familia has been terrific in the ninth inning for the Mets and Tyler Clippard is a reliable setup option to join Addison Reed.

Edge: Yankees

Bench

With no DH in the series, the Yankees will have Alex Rodriguez coming off the bench and can add John Ryan Murphy, Chris Young and Dustin Ackley to the equation. Rico Noel is a pinch-running specialist.

Kelly Johnson and Juan Uribe have bolstered the Mets’ depth over the last two months and Michael Cuddyer is a right-handed bat off the bench.

Edge: Yankees

Manager

Joe Girardi deserves credit for keeping everything together — the Yankees’ sum is greater than their parts.

Terry Collins is NL Manager of the Year material, but still needs a World Series ring to catch Girardi.

Edge: Yankees

Prediction

Mets win two of three.