JUPITER -- The Marlins have had very few clients of agent Scott Boras over the years. But they have a big one now.

Top pitching prospect Jose Fernandez confirmed Thursday that he has signed with the high-profile agent.

“He’s the best around,” Fernandez said. “I like the way he goes about business, the same way I do.”

The last top-shelf Boras client to play for the Marlins was catcher Ivan Rodriguez, who was with the Marlins for just one season — 2003 — before leaving via free agency.

Fernandez pitched two scoreless innings in a “B” game start against the Cardinals on Thursday. Manager Mike Redmond said Fernandez will pitch an inning when the Marlins face Team Venezuela on Tuesday 5.

Turner gets hit hard

Jacob Turner’s first spring outing went poorly. Turner was roughed up by the Cardinals in an 8-2 loss, giving up six first-inning runs while retiring just one batter.

Turner gave up four hits, including a grand slam to Oscar Taveras, walked three and hit a batter before being lifted from the game with one out in the first by Redmond.

“He just looked uncomfortable for whatever reason,” Redmond said.

Giancarlo Stanton had a big day for the Marlins, going 3 for 3 with a walk in four plate appearances. Stanton had a triple, double and single in his first four plate appearances, missing the cycle when he walked in his fourth and final trip to the plate.

Pilates for Ruggiano?

A doctor recommended Pilates to Justin Ruggiano as a way to prevent further occurrences of the back problems that have plagued him this spring and in the past.

The Marlins’ projected Opening Day center fielder has been idled by a strained back.

“I saw the doc [Wednesday] and he said everything looked good,” Ruggiano said. “He said the back looked good but just needed the muscles to calm down. For a strengthening regimen, he recommended Pilates. I’ve never done it. You can put down I’m looking for a good Pilates instructor in the area, someone who can come meet me at 5:30 in the morning in the gym, give me a routine.”

Ruggiano said he hopes to resume hitting in the next two or three days.

“I’m thinking a week to 10 days to be in a game,” he said.

Coming up

•  Friday: Minnesota Twins RHP Vance Worley (6-9, 4.20 ERA) at Marlins RHP Henderson Alvarez (9-14, 4.85), 1:05p.m., Jupiter.

•  Saturday: Marlins RHP Alex Sanabia (6-7, 4.06 at Triple A New Orleans) at New York Mets RHP Matt Harvey (3-5, 2.73), 1:10 p.m., Port St. Lucie.