Manager Don Mattingly encouraged how Marlins rotation shaping up

Even with rotation appearing to be set, Marlins manager Don Mattingly keeping options open.

Even with rotation appearing to be set, Marlins manager Don Mattingly keeping options open.

JUPITER — With one week remaining in spring training and less than two weeks to the season opener, the Marlins rotation appears to be settled.

Miami optioned lefty Justin Nicolino to Class AAA New Orleans on Tuesday and has started shortening Edwin Jackson’s innings, two decisions that indicate Jarred Cosart and Adam Conley will fill out the rotation behind Wei-Yin Chen, Alex Fernandez and Tom Koehler.

Manager Don Mattingly, though, is not ready to announce the final two spots, waiting to see how the final 10 exhibition games play out, including eight Grapefruit League games and two games at Marlins Park against the Yankees on April 1 and 2.

“We kind of left it open,” Mattingly said. “We don’t have to make decisions on the final couple of spots, so why [wouldn’t we wait]?

“It’s funny how those last few times out change things. Guys know they’re the last guy and ‘I got a chance.’ At that point that’s just making the club. Then you can’t have a letdown and say, ‘I made the club, life is good.’ You have a couple of bad starts and somebody else is coming up.”

Still, Mattingly likes what he has seen, from the five who will start the season in the rotation and those who will be providing the depth whether they are in the Marlins bullpen or the minors.

“I feel good about the guys we think we’re going end up with,” he said. “Then it’s a matter of performing and us staying healthy.”