PITTSBURGH — Starling Marte’s transformation to dependable right fielder has impressed Mets officials, but not totally surprised them.

After spending the first 10 seasons of his MLB career in center field, where he won two Gold Glove awards, Marte moved to right this year — allowing Brandon Nimmo to play center — and has consistently earned high marks from manager Buck Showalter for his glove and strong arm.

“Keep in mind it’s kind of like taking a third baseman and making him a second baseman,” Showalter said. “This guy has gone to a position he’s never played before this year. It’s something through our outfield work we hoped and thought he could do and he has — he has applied himself.”

The manager equates Marte’s strong arm to a batter trying to get a hit.

“We always look at 90 feet as, ‘Did he get a hit?’ ” Showalter said. “Well, [Marte] has gotten 90 feet once or twice a game sometimes by guys not running on him in the outfield. They stop at second. They stop at third. It’s just like getting a base hit. The game is played in 90-foot increments when all is said and done. Home runs happen, but when you can stop 90 feet and gain 90 feet, the game gets a lot easier.”

Taijuan Walker will remain in turn as the scheduled Mets starting pitcher for Tuesday’s game. Jacob deGrom and Chris Bassitt (in some order) are the scheduled starters for Wednesday’s split doubleheader. The Pirates plan to start Mitch Keller on Tuesday, followed by Bryse Wilson and Yohan Oviedo (in some order) for the doubleheader.

Jeff McNeil leads the major leagues with a .356 road batting average this season. McNeil owns a .356/.402/.510 slash line away from Citi Field. At home he slashes .287/.342/.404.