PITTSBURGH — Just when Robinson Cano is starting to hit, the Mets’ starting second baseman appears headed back to the injured list.

Cano limped off with a strained left hamstring, an injury that overshadowed Noah Syndergaard’s sparkling outing in a 13-2 rout of the Pittsburgh Pirates on Sunday that pulled the Mets within one game of .500 for the first time since mid-June.

Cano is to have an magnetic resonance imaging examination on Monday, when the Mets open a homestand with a doubleheader against Miami.

“We don’t know what it is yet. We just are going to get it checked out tomorrow,” Cano said. “We will see what happens.”