For the first Monday in April, it was a fairly compelling day in the world of New York baseball.

Shortly before noon, the Mets officially announced Francisco Lindor’s contract extension, the one apparently decided over a meal with the effusive shortstop and his new billionaire boss Steve Cohen, who recently crowdsourced contract ideas on Twitter.

Then came about 45 minutes worth of Cohen and GM Alderson detailing the contract extension while also touching on other topics, notably Alderson saying he was going to try and educate his players on the benefits of being vaccinated against COVID-19, especially with states lowering age requirements.

This came up after J.D. Davis expressed some hesitation about it, ironically doing so during media availabilities when the Mets saw their first series in Washington postponed due to multiple Nationals testing positive.

“We want to get as many players vaccinated as possible,” Alderson said. “I think that’s in the best interest of the team. It’s in the best interest of their families. It’s in the best interest of those who work with the players. So I hope that in addition to their own personal medical considerations that they take all of those things into consideration as well.”

The reaction of Davis is occurring as MLB says if a team gets 85 percent vaccinated amongst its traveling parties, some of the restrictions are lifted.

Alderson’s comments about encouraging vaccinations came after Cohen said he thought Lindor was going to lead the Mets to the playoffs. Cohen made that comment during a virtual press conference where he noted also was staring at computer screens monitoring the activities of his day job running the Point72 Asset Management hedge fund.

After Alderson and Cohen finished, the Yankees began prepping for their game with the Baltimore Orioles in what would turn out to be an eventual 7-0 win. It was fairly routine other than the impressive 471-foot grand slam from Giancarlo Stanton that soared into a terrace area in the left field stands.

Stanton’s grand slam was his first hit after a 0-for-10 start, making him the latest to go 10 straight at-bats and have it be more noticeable in April than say the middle of June or July.

It also came after some concerns persisted about the early slump, especially when Stanton heard boos from some of the 10,850 fans (20 percent capacity) for going 0-for-5 with three strikeouts on Opening Day.

Hours after Stanton’s impressive drive, manager Aaron Boone invoked the reference of how Kevin Durant once described Kristaps Porzingis before things apparently imploded with Porzingis and the Knicks.

“The way he hits them, it’s just different,” Boone said. “It’s like nothing else. He is a unicorn. That ball was just so pure on a night where it’s probably not flying great and just hits through the stadium.”

As for Stanton’s take on the grand slam and buildup to it, he said: “I try my best when I’m out there, so I can’t worry about all of that. You guys (media) like to make a big deal of it. I had (eight) at-bats. So, if you throw that into two months, I don’t even think someone’s yawning about it.”

Stanton’s homer occurred around 8:10 pm which is a little over an hour into the start of the season for the Mets, who got two hits from Jacob deGrom along with six innings from their ace.

In those six innings, deGrom threw 77 pitches and much to the chagrin of Keith Hernandez and many on the SNY telecast, he was pulled with the postgame explanation from manager Luis Rojas being deGrom had not faced any hitters in 10 days.

And in a theme from recent years the Mets wound up losing a game deGrom started, giving him another no-decision (33 since the start of the 2018 season if you’re keeping track).

And then when deGrom exited, the disaster struck with new bullpen names Trevor May and Aaron Loup combining to mess things up in a nightmare of a five-run inning that can best summed up in one of May’s postgame comments.

“It’s frustrating,” May said. “I can’t imagine what it was like to watch it.”

The saying goes that in New York every day is like a one-game season wrapped around the 162-game marathon.

Perhaps that applied for the notable baseball events taking place with both teams in the first full week of a season laced with high expectations for both teams.