SARASOTA, Fla. – Most of the players in today’s Orioles lineup came out of the game after the fifth inning. First baseman Pete Alonso wanted to stay.

“I like getting prepped for the season,” he said. “I think getting as many looks from different arms is always a good thing. Tomorrow I’ve got off, so it’s like, what’s three more outs on defense, what’s one more at-bat?

“For me, I just want to get as many reps in a competitive environment as I can to get ready for the year.”

Trust his instincts and routine.

Alonso took full advantage of his extra plate appearance. He grounded out and was robbed on a diving catch from Yankees center field Kenedy Corona before he faced Bradley Hanner in the sixth. Jeremiah Jackson stood on first base with one out when Alonso crushed a first-pitch curveball, sending it over the fence in left field. He paused to watch it.

The first home run for Alonso as an Oriole also was his first no-doubter.

“Obviously, hitting homers feels amazing,” he said. “Doesn’t matter what time of the year. Happy to break the seal.”

Alonso provided all of the scoring in a 2-0 win before an announced crowd of 7,886. The uniform looked right on him after seven seasons with the Mets.

“I feel honored to wear it,” he said. “I feel great in it. I feel like I look good in it. It’s fantastic. I honestly couldn’t feel any better.

“I’ve been wearing orange since 2014. I haven’t changed colors. I think orange is my color.”

Opposing pitching is how he feasts in it.

“We were watching the order to see where it comes around,” said manager Craig Albernaz. “We were checking in with all our guys to see where they’re at physically and how they’re feeling, if they want the next one. Pete wanted it and he made the most of it.

“He just wants to play. Also, the position he plays dictates that, too. He plays first base as opposed to a shortstop or catcher or center fielder. Pete’s very aware of his body and we were talking to him. We were talking with all the guys throughout the game. So yeah, it speaks a lot. Pete just wants to play.”

In typical Alonso fashion, he was having fun and making sure everyone knew it.

Alonso jogged past the bullpen carrying his equipment bag and said, “Come on guys, let’s close out this win.” Total sarcasm, he admitted later.

“I’m completely messing around,” he said.

Alonso hugged his parents, who made the trip from Tampa. Today brought back childhood memories because he played “a ton of games” for the Sarasota Salty Dawgs, a travel team with its field across the street from Ed Smith Stadium.

“It’s really reminiscent, not just for me but for them, because as a kid I remember riding shotgun, just getting ready, getting dressed,” he said. “So it’s really cool kind of driving by. … It’s really special.”

The $155 million man clapped for a nice defensive play during his in-game MASN interview, and he paused in the middle of an answer during the media scrum that followed because “Thank God I’m a Country Boy,” the club’s seventh-inning stretch song, was playing on the public address system.

“I really love this song,” he said. “This is gonna be really fun this year.”

Teammates are picking up on it.

“It’s high energy and he’s a big presence on the field,” said Coby Mayo. “He’s a leader in the clubhouse and he’s already made that presence felt from the start of camp. It’s gonna be great to have him this year with us and in the next five, and just looking forward to that.”

Trey Gibson tossed three scoreless innings for the nine-out save.

Orioles pitching walked two batters and struck out 13.

Trevor Rogers retired six of seven batters, striking out the side in the second inning. The only hit was a soft single from Jazz Chisholm Jr.

“It was great to see Rog,” Albernaz said. “He was working on spin in zone, did a great job of throwing strikes. Very encouraging first outing for Trevor.”

The defense was tight, and Alonso expressed his confidence in Mayo at third base and Jeremiah Jackson at second. Mayo might be replacing Jordan Westburg at the hot corner and Jackson is in the competition for a utility job, also made more important by Jackson Holliday’s hamate bone surgery.

“Just the couple days I’ve been here, they’re a group of workers,” Alonso said. “Everyone at the big league level is talented, but these guys, they’re incredibly hard workers and you love to see that out of young guys. They’re not afraid to ask questions, be themselves, and when you couple that together, you know that they’re gonna be ready for when the season starts.”

Mayo wants a chance to play, but he wishes it came under different circumstances.

“I think that’s why you stay ready and you do all the work in the offseason in spring training just in case something freakish happens,” he said. “It’s unfortunate for them. I really do feel horrible, especially with Westy being out significantly more time, but it’s an opportunity and it’s all about what you can do with it.”

Mayo is back at third base after last summer’s move to first, and instructions and input that made him believe he’d stay there.

“I felt for the majority of the offseason it was at first,” he said. “Just kind of felt that’s what it was moving forward. Thought it was just gonna be full-time first. Kind of my conversation with Mike (Elias) and at the time Manso (Tony Mansolino) last year about the offseason and going into spring training, what it would look like at first. But then I got a call probably like a month ago. Probably gonna be a good idea to get some third base reps and you know, being a versatile player and being able to play multiple positions is definitely going to benefit myself and the club. And anywhere you go. When you’re able to play multiple positions, it helps you out staying on the field. So got to work, and now this camp’s been pretty much all third.

“Doing a lot of work with Miggy (Miguel Cairo) and Buck (Britton) this spring. We’re out there every day grinding, battling, doing what we can to get as game ready as possible. Obviously, I didn’t get any reps last year (at third) during my big league stint, so trying to get back into the groove of things over there. But I’m feeling pretty good.

“I think some action over there during the games will help me out, as well.”

Mayo wants to improve his footwork. Keep the feet moving and don’t get too tall and upright.

“I just think that I can get better at staying lower to the ground, playing low,” he said. “I think I’ve got a strong arm and I’ve got to use that for my ability and just be a complete third baseman.”

*The Orioles moved closer Félix Bautista to the 60-day injured list to make room on the 40-man roster for infielder Bryan Ramos.