- Associated Press - Tuesday, March 18, 2014

JUPITER, Fla. (AP) - Giancarlo Stanton hit a three-run homer in the first inning that bounced on the roof of Miami’s clubhouse beyond the left-field wall during the Marlins’ 8-1 win over the Houston Astros on Tuesday.

“I’ve only seen one other guy, Mark McGwire, hit a ball that far, especially in this ballpark,” Marlins manager Mike Redmond said. “He’s got some sick pop.”

Stanton turned on a Dallas Keuchel changeup for his second three-run homer in as many days and fourth home run of spring training. Stanton also lined a single in the fourth, raising his batting average to .333 and his slugging percentage to .692.

“You can tell he’s starting to swing the bat well,” Redmond said. “You can tell he feels good. That’s fun to watch, that’s for sure.”

Casey McGehee hit a three-run double into the right-center field gap in the second and was thrown out trying to stretch it into a triple.

Keuchel, who hadn’t allowed a run in nine innings during his three previous spring training starts, gave up seven runs and 13 hits in four innings.

“They had a better plan than I did in the first two innings, and I just didn’t make an adjustment,” said Keuchel, a candidate for a rotation spot.

Marlins starter Jacob Turner allowed one run, two hits and three walks in five innings.

“After the first inning I felt good,” Turner said. “I made a lot of good, quality pitches, got my changeup working, which I was happy about.”

Jake Marisnick, Reed Johnson and Derek Dietrich all had three hits for Miami.

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Houston: Keuchel went 6-10 with a 5.15 ERA last season, but Astros manager Bo Porter attributed those numbers to a handful of poor outings.

“If you look at his whole body of work, he put together a pretty good season last year,” Porter said.

Miami: Jacob Turner looks stronger than last year and has impressed the Marlins with his velocity.

“I think he’s throwing the ball harder,” Redmond said. “I know velocity-wise we’ve seen some mid-90s fastballs this year, which we didn’t see last year.”

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