MIAMI — Zack Wheeler could rejoin the Mets right after the All-Star break, bringing an end to his arduous rehab from Tommy John surgery.

The righthander will throw a 30-pitch bullpen session at Marlins Park Saturday as he builds up arm strength ahead of a minor-league rehab stint.

advertisement | advertise on newsday

According to manager Terry Collins, a rehab assignment may still be “a ways off.”

Instead of targeting an early July return, the Mets appear prepared to hold off Wheeler’s comeback until after the All-Star break in mid-July, which would avoid having him come back only to subject him to a long layoff.

But for Wheeler, the end of the process appears close.

“It’s sneaking up on me,” Wheeler said. “It’s getting here quick and fast. Like I said, every time I’m throwing a bullpen I’m getting my pitch count up.”