Chapman ‘fine physically’ after shaky save

Aroldis Chapman hadn’t allowed a run in his previous six appearances before he came on to finish the Yankees’ 5-3 win over the Red Sox at Fenway Park on Saturday.

That changed when Bobby Dalbec homered off the lefty closer with one out in the bottom of the ninth. Chapman then hit Kevin Plawecki with a pitch to put the potential tying run on base, before rebounding by getting Jose Iglesias and Kiké Hernandez for the save.

Chapman’s four-seam fastball averaged 96.8 mph — lower than his season average of 98.3 mph, according to Baseballsavant.com.

Manager Aaron Boone said afterward that Chapman was “fine physically” and not dealing with any of the fingernail issues that have plagued him at times this season.

“We’ve seen, as he’s come back and started to throw the ball better this year, sometimes it takes a few [pitches] to spike up his velocity,’’ Boone said. “It’s all about getting locked in mechanically. That affects his velo and affects his command.”

➤ Jonathan Loaisiga is on track to deliver the Yankees another boost for their showdown against the Blue Jays, which begins Tuesday in Toronto.

The reliever, who has been on the injured list since Sept. 5 with a strained rotator cuff, is scheduled to throw another bullpen session on Sunday, after which he could be cleared to return as the Yankees fight for a wild-card spot in the final week of the regular season.

“Hopefully, if everything goes well with that [session] ... then he could potentially be active for the Blue Jays series,” Boone said.

Loaisiga threw his first bullpen session on Friday and it “went well,” Boone said. The manager added the Yankees could decide Loaisiga needs one more session after Sunday’s or that he needs to face live hitters, but if not, he would be available to pitch important innings against the Blue Jays.

Right-hander Jameson Taillon is also expected to return from the IL to make a start at Toronto, meaning the Yankees will likely have to clear two roster spots in the coming days.

➤ The Yankees won’t leave any pitchers behind, as a precaution when they travel to Toronto, according to Boone.

There are stricter COVID-19 protocols in Canada, including increased testing. If a player tests positive while in Toronto, the ensuing quarantine would cost them the rest of the regular season and possibly the start of the playoffs if the Yankees make it.