By almost any standard, Nolan McLean is off to the best start for any rookie pitcher in New York Mets history.

And if the scouting report is correct, Jonah Tong might be even better.

Tong, the Mets’ No. 4 prospect, per MLB Pipeline, will make his major league debut Friday night when he takes the mound against the visiting Miami Marlins in the second contest of a four-game series.

Tong, 22, is slated to oppose fellow right-hander Eury Perez (6-3, 3.44 ERA).

The Marlins cooled off the surging Mets 7-4 on Thursday after taking advantage of three errors to score five unearned runs.

The loss ended a three-game winning streak for the Mets and provides Tong a chance to begin providing an immediate boost a la McLean, whose promotion Aug. 16 coincided with the start of an 8-4 stretch for New Y

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