Despite a lack of specifics, there was never much concern from either the team or player on the timetable for Marcus Stroman‘s return from the left calf tear he suffered toward the end of Summer Camp.

He comfortably took the next step on Friday by tossing four innings against hitters in a simulated game at the Mets’ Alternate Training Site in Brooklyn, New York.

“I heard it went really good,” manager Luis Rojas said before the Mets squared off with the Braves in Atlanta.

“He’s been going full tilt with his sides and [now] facing hitters. The report I got was that it went really good.”

Stroman had said was surprised by the diagnosis considering the cause and extent of the pain he felt in the following days.

He was hit with a sharp ground ball in a simulated game about 10 days before Opening Day, and though the calf swelled up significantly, it didn’t affect him until his next outing when he felt pain after running to cover first base.

“It kind of progressed the next few days, felt good, ended up throwing a 50-pitch bullpen on my normal day, then we decided to run just to make sure and that’s when I kind of felt it,” Stroman said.

All along, Stroman and the team have maintained that the injury does not bother him while throwing and landing on the affected leg. Getting to the point where he can make quick cuts and field his position is the emphasis of his rehab.

“He did some PFP [pitchers fielding practice] drills to test the coming off the mound, covering first, and doing some fielding,” Rojas said of the Friday workout.

“That’s what he thought was preventing him from actually being out there in the game.”

Stroman will miss no fewer than two turns through the rotation since David Peterson, his replacement, is officially listed as the Mets’ starting pitcher on Sunday against the Braves. No further plans have been discussed yet.

Peterson gave the Mets a strong outing in his major league debut, allowing two runs over 5.2 innings against the Red Sox on Tuesday in Boston.

“He gave us a big start when we really needed one,” GM Brodie Van Wagenen said on Thursday at Citi Field.