BOSTON — Aroldis Chapman said “everything’s fine” between he and Aaron Boone after they disagreed about how to approach the ninth inning in Wednesday’s game against the Royals in The Bronx. They initially agreed to have him pitch to Carlos Santana — only for Boone to change his mind when he got back to the dugout.

Boone opted to walk Santana intentionally to load the bases and have Chapman pitch to Sebastian Rivero.

Chapman ended up walking Rivero on four pitches to force in a run. The Yankees came back and won the game despite Chapman’s blown save.

“I was definitely a little uncomfortable with the decision because I have a history with Santana, and I’ve faced him,’’ Chapman said Sunday through an interpreter. “I know what kind of hitter he is and how to attack him instead of someone I never faced.”

Afterwards, a visibly angry Chapman could be seen screaming in the dugout before the Yankees won the game.

“It had to do with the fact we agreed to something and in my mind, that’s what I’m getting ready to do,’’ Chapman said. “We agreed on the mound and at the last second, he changed, so we have to reset there. Maybe it got me a little out of rhythm there.”

Boone and Chapman spoke after the game and Chapman said the manager explained the logic behind the decision.

“I was a little uncomfortable [with the decision], but we spoke about it and everything’s fine,’’ said Chapman, who didn’t pitch in Sunday’s 9-2 loss against the Red Sox at Fenway Park and hasn’t pitched since the blown save appearance.

Chapman also said he was fine physically, despite a seven-outing stretch in which he’s given up 12 hits, eight runs — seven earned — two homers and five walks, while striking out just six over 5 ¹/₃ innings, as his ERA has jumped from 0.39 to 2.54.

After pitchers expressed dismay about being checked for foreign substances while still on the field, Zack Britton said the players association and MLB are scheduled to meet this week to discuss alternatives.

“Maybe they heard our rallying cry,’’ said Britton, who called the optics of it “embarrassing” last week. “I hope we clear up the optics of it.”

Britton has advocated for checks either in the dugout or bullpen, away from the eyes of the fans.

After leaving Friday’s game with a hamstring injury and being placed on the IL, Britton was able to throw and do some agility drills before Saturday’s game, hopeful he’ll be able to be activated as soon as he’s eligible.

The left-hander also said he didn’t feel he needed an MRI exam.

“It’s frustrating,’’ Britton said. “I had the [elbow] surgery [in spring training], and now it’s another little thing. I’m glad I can throw right now and don’t feel it. It grabbed on me pretty good on the mound.”

He blamed focusing too much on his rehab from surgery, saying he “neglected” working on his lower body.

“At this stage of my career, I should know better,’’ Britton said. “After the COVID [diagnosis during the offseason], I’ve been behind the eight-ball the entire season.”

Britton also dealt with a hamstring injury last year but said this one wasn’t as serious.

Darren O’Day (rotator cuff) and Justin Wilson (hamstring) both pitched scoreless innings in rehab appearances for Triple-A Scranton/Wilkes-Barre on Sunday.

They are expected to rejoin the bullpen soon, with Boone saying Wilson’s velocity is up from where it was earlier in the season, during which he got off to an ineffective start.

DJ LeMahieu and Aaron Judge were the only position players to advance to the next round of All-Star voting, with LeMahieu in third place at second base and Judge in second in the outfield. The next phase of voting ends Friday.