Gregory Soto relieved him to keep the Mets up 1-0, officially closing the book on McLean’s big league debut. In all, McLean tossed 91 pitches, 55 of which went for strikes. He largely used sweepers (36 percent) mixed in with sinkers (26 percent) and curveballs (21 percent).

The Mets, as manager Carlos Mendoza put it, did not need Nolan McLean to play hero in his major league debut Saturday. They just wanted a good start, an outing that would give New York a chance to beat the Seattle Mariners and maybe,

McLean showed off a five-pitch arsenal that included a high-70s curveball, a high-80s sweeper, a 90-mph cutter and sinkers and fastballs both measured in the high 90s. He limited the Mariners to one hit in 10 plate appearances with a runner on base.