A-ROD BATTERS UP WITH KATE HUDSON

YANKEES slugger Alex Rodriguez seems to have traded in a vintage Madonna for a late-model Kate Hudson.

The blond, Los Angeles-born actress — who met A-Rod at the reopening of the Fontainebleau hotel in Miami Beach last November — was photographed at Friday’s game, cheering on the Bronx Bombers at the new Yankee Stadium.

But the real action came later that night at Mustang Grill on Second Avenue. Our source said a bartender at the Southwestern joint at 85th Street “was asking patrons not to go in the back room around 1 a.m. because A-Rod and Kate Hudson were back there making out.”

One staffer at the restaurant confirmed to Page Six the two were there celebrating the Yanks’ win against the Minnesota Twins.

“Yes, they were here together,” the server told us, although she did not witness any lip-lock herself.

Another source said the two were spotted over the weekend outside the glamorous 15 Central Park West, where A-Rod rents an apartment.

In January, A-Rod and Hudson had dinner with a group of friends at Lure Fishbar and then went for drinks at the Rose Bar in the Gramercy Park Hotel.

Hudson, 30, was married to Chris Robinson for six years until their split in 2006. The couple have a son, Ryder Robinson. Since the breakup, Hudson has been linked to Owen Wilson, Dax Shepard and Lance Armstrong.

Rodriguez, 33, and his wife, Cynthia, split in 2008 after “an affair of the heart” with aging pop star Madonna. But Madge has lately been making time with her Brazilian boy toy, Jesus Luz.

A rep for Rodriguez said, “No comment.” Hudson’s publicist didn’t return calls.