A-Rod on Kate & narrow

New York Post – Angela Montfinise and Douglas Montero – It’s another Miracle on the Hudson.

Alex Rodriguez’s newfound playoff prowess after years of choking in the post-season is a product of his steamy — and surprisingly honest — romance with sexy screen siren Kate Hudson, a team source and a top sports shrink said yesterday.

A team insider said A-Rod has ditched his philandering ways and is making a big effort to inject honesty and openness into his relationship with the actress.

“He’s decided to be completely honest with her because what he was doing in the past didn’t work,” the source said, referring to his ugly 2008 divorce.

The healthy off-field relationship with Hudson is translating into October success on the baseball diamond, experts said.

“If he’s becoming a little more honest . . . he would have less anxiety,” said Palm Beach sports psychologist Dr. John Murray. “He would sleep better at night and be more relaxed. More focused. That is key.”

The steamy slugger has a long history of failing in the clutch — and in his personal relationships.

While racking up a paltry .212 lifetime batting average in the playoffs, he carried on “extramarital affairs and other marital misconduct,” according to papers filed by his ex-wife, Cynthia.

Cameras caught him with stripper Joslyn Morse in Toronto in 2007, and he was later linked to Madonna while still married.

In postseason play from 2005 to 2007, A-Rod had a grand total of one RBI. The Yankees were bounced in the first round in each of those years.

But this year, A-Rod has “looked really relaxed, really great,” Murray said.

He has hit .500 over two games and smacked five RBIs, and his game-tying, ninth-inning homer Friday night set up a Yankee win. A victory today in Minnesota would complete the sweep and put the Bombers in the American League Championship series.

Hudson — who has accompanied Rodriguez on road trips and often cheers him from his personal seats in The Bronx — was at both playoff games last week.

“If you get somebody like a gorgeous woman, someone who you admire, somebody who’s behind you, [athletes] know it,” Murray said.

Even when she isn’t cheering for A-Rod in person, Hudson has been rooting for him at bars. In June, she watched the Yankees take on the Indians at Bar 108 in SoHo.

“She was clapping, rooting for him and even hollering. She was very animated. She was pushing him hard, and I think she’s a good influence,” a bartender there said yesterday.

He added, “If I got a woman that pretty rooting for me, I’d do good, too.”

People are realizing more and more the benefits of a solid mental game and sports psychology.