Alonso ended up re-signing with New York (two years, $54 million with a player option after the first year), but his presence in the middle of the Mets’ lineup wasn’t always a given. In free agency, as he put it, Alonso and agent Scott Boras received “dialogue from a number of places over the course of the offseason.”

Pete Alonso received among the loudest cheers — if not the loudest —during the Mets’ on-field introductions Friday, and that adulation didn’t stop once the game began.

Mets lefthander David Peterson turned in a quality start, allowing two runs in six innings. Otto Lopez homered in the first and Eric Wagaman went deep in the sixth. Peterson struck out nine and scattered three walks and five hits, benefitting in particular from a double-play ground ball in the fourth.