Jacob deGrom’s waiting game continued on two fronts.

He was with the Mets for their 1-0 loss to Philadelphia Saturday night at Citi Field, still waiting on his wife, Stacey. He wants to be there with her in Florida when she gives birth to their first child — coming any time now.

And he was still waiting for his lat muscle to feel better.

The 27-year-old righthander checked out of Friday’s well-chilled, home-opening, 7-2 win after throwing just 76 pitches and allowing only one run and five hits across six innings. He experienced tightness in that right lat muscle while firing a few fastballs to the Phillies’ leadoff batter in the sixth, Jerad Eickhoff.

And a day later? Well, deGrom wouldn’t comment before or after the game. Terry Collins, though, had the update. It didn’t sound that encouraging.

“Still stiff, still sore today,” the manager said. “So we’ll again wait till tomorrow.”

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As in deGrom’s throw day for Wednesday afternoon’s scheduled start against visiting Miami, baby and lat permitting.

“We may need a starting pitcher for his spot on Wednesday, depending on how he comes out tomorrow,” Collins said. “You hear the statement ‘day-to-day’ — that’s exactly where we are with him.”

Collins said deGrom didn’t have an MRI, but that he was getting treatment. If deGrom isn’t up to throwing today, Logan Verrett could be a candidate to come out of the pen and take the start — if he isn’t needed extensively before then.

“I feel ready to go, however many pitches they need me to do,” Verrett said.

Verrett turned in two very strong starts out of four last season, his first in the majors. The 25-year-old righty went 1-1 with a 3.63 ERA as a starter and 0-1 with one save and a 2.20 ERA in his 10 relief outings with the Mets.

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The Mets lost Verrett to the Orioles in the 2014 Rule 5 draft. The Rangers claimed him near the end of spring training before returning him to the Mets after about a month. The Mets outrighted him to Triple-A Las Vegas. But they would need him.

Verrett’s lone big-league victory came in his first big-league start at a pitching house of horrors, Coors Field. Verrett allowed one run and four hits and struck out eight in eight innings against Colorado in a spot outing on Aug. 23 — the first Mets starter ever to last at least eight at Coors.

Verrett said he gained “tons” of confidence from last year’s starts, “especially the first one at Colorado, and the ones after that. I really feel confident to go out there. You’ll get the adrenaline and everything, but not really the nervous feelings after having a few successful outings.”