18. He’s earned respect from the defending N.L. Cy Young Award winner. After Alonso hit his first homer in Miami, Jacob deGrom — the last Met to win rookie of the year honors — approached Alonso, and the two shared a quiet exchange.

“The guy has some of the most power I’ve ever seen,” deGrom says.

19. He is ready for Yankee Stadium, where the Mets will take on their cross-town rivals in a two-game series starting Monday. One of his penchants is to drive outside pitches the opposite way, and the right-field porch is just 318 feet from home plate in the Bronx. Bonus: He can leave his glove in Queens as Callaway plans to use him as the designated hitter Monday night.

With Judge sidelined because of an injury, Alonso will have the stage to himself.

“I don’t want to compare myself to anyone or put myself in a box or mold,” Alonso says. “I just want to continue to evolve and just be my own player. Hopefully one day people will say, ‘He’s Peter Alonsoish.’”

20. His bat could help pay some upcoming bills. If he is selected to participate in this year’s home run derby — a prospect he called “mind boggling” — he’d have incentive to try to win it. As a rookie, he is making the league minimum $555,000. This year, Major League Baseball added a $2.5 million pool of bonuses for the derby, including $1 million for the winner.

“That would definitely pay for the wedding costs,” he says.