IL’d McCann could miss extended time

James McCann is returning to the injured list for the second time this season, and Buck Showalter expects the Mets’ starting catcher to miss more than the minimum 10 days.

McCann suffered an oblique injury while applying a tag in the sixth inning of Saturday’s 10-inning win over the Marlins. He also spent more than six weeks on the IL with a fractured hand before being activated on June 25. Patrick Mazeika was recalled from Triple-A Syracuse to back up Tomas Nido in Sunday’s series finale at Citi Field.

“It won’t just be the [IL] period. … It’ll be longer than 10 days,” Showalter said before Sunday’s 2-0 loss to Miami. “Obviously for the team, too, but I’m disappointed for him.

“The trainers were talking about it. I don’t know if they’ve ever had anybody work harder to get back from the hamate [injury]. I know Mac was really disappointed [Saturday] night, wanted to get some different news. But it’s the nature of what these guys do for a living.”

Showalter said the Mets “actually got good news” from the MRI results on outfielder Starling Marte, who departed Saturday’s game with left groin tightness.

“We’ll look at him as day-to-day and I’m hoping it’s not too long,” Showalter said.

Marte, one of four Mets selected to the NL All-Star team Sunday, has a slash line of .380/.436/.600 over his last 13 games to raise his overall average to .291 with an OPS of .803.

“Everything came out fine, just slight inflammation,” Marte said through a translator. “I’d been feeling it for a couple of days and thought it was something