MLB

Yankees’ Hughes gets new grip on curveball

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Phil Hughes’ curveball was not working. There was no deception, no knee-buckling feedback from the hitters to show that the pitch had the right stuff.

“It never looks like a strike,” Hughes said. “And I just wasn’t getting the reactions that I really should be getting out of a curveball.”

In response, Hughes revealed to The Post that he will employ a new power curve, hopefully as soon as his start on Sunday in Toronto. It’s one of two major changes for the struggling 25-year-old, who said he will also implement new mechanics to his delivery.

Hughes will be using a new grip on his curveball, one that he characterized as more customary than his old grip and that he believes gives him more velocity as well as stronger spin and drop. Mechanically, he is changing the way he raises and plants his front, left leg, believing his current motion has gotten to “a point where it was really hindering my stuff.”

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Hughes, who has 0-2 record and 10.57 ERA in four starts this season, is a key to the Yankees’ second half since he should bring a fresh arm to a rotation that already has the older, worrisome bodies of Bartolo Colon and Freddy Garcia. He’s also pitching with pressure on him — Ivan Nova looms in the minors as a possible replacement.

Given these anticipated changes, Hughes’ start against the Blue Jays promises to be even more fascinating.

He said he has been working on the changes since his start last Wednesday in Cleveland, his first since an inflamed shoulder landed him on the disabled list in April.

Hughes’ old curve grip was what he calls “a spike,” where one of the three fingers used to hold the pitch is bent. He had tried increasing his arm speed to improve his old curve to no avail, and determined that changing the grip was necessary.

“I feel like I’ve made really good strides with it. It’s a lot more of like a power curveball now,” Hughes said. “[Pitching coach Larry Rothschild] was excited about it in the bullpen. I feel really good about it, too.”

How important can Hughes’ curve be? In his start against the Indians, he threw 21 curves, just 11 for strikes and only one for a swing-and-miss. In probably his best start of last season, May 12 against the Tigers, he fired seven shutout innings, throwing nine of his 11 curves for strikes and getting three swings-and-misses.

Hughes is changing his curve even though it’s midseason, he hasn’t had much time to work on it and he’s been throwing it the same way for years.

It’s possible he won’t break it out against Toronto, though he plans to as long as it doesn’t regress in his bullpen session and pregame warmup.

“I’m excited about it because it’s been so long since I’ve really had that good swing-over-the-top curveball that I became accustomed to like in Double-A,” he said. “It sounds kind of weird to fiddle with something in the middle of the year, but if it can make me better, then I’m going to do it for sure.”

As for his mechanics, Hughes said, “I just felt like over the years, basically starting from my hamstring injury [in 2007], I’ve kind of formed a couple bad habits. . . . I’m trying to correct a couple of those things.”

mark.hale@nypost.com