The Mets have clearly reached the countdown stage to Zack Wheeler's major league debut.
A high-ranking team official told The Post on Thursday that barring a setback, the club's top pitching prospect is expected to make 2-3 more starts for Triple-A Las Vegas and then join the Mets. If Wheeler remains on normal rest, that would put his Mets debut somewhere in the June 6-11 range.
After missing a start last Friday because of soreness in the AC joint in his right shoulder, Wheeler returned to the Las Vegas rotation on Wednesday and allowed three runs over five innings against Iowa.
"If not for the minor setback with the shoulder, he might already be here," the club official said. "We are at the point where you can say it's probably two or three more starts [for Las Vegas]."
Wheeler is 3-1 with a 3.91 ERA in nine starts at Las Vegas. He was clocked at 100 mph in his start Wednesday, but was mostly in the 95-97 mph range with his fastball, according to an evaluator who watched the performance.