NEW YORK — David Ortiz’s stellar season isn’t changing his mind about retirement.

“My body is counting the days, let me tell you,” the Boston Red Sox star said Tuesday before his final series at Yankee Stadium.

Ortiz began the night with a .321 batting average, a major league-leading 48 doubles, 37 homers and 124 RBIs. He hopes to earn a fourth World Series ring with the Red Sox.

“You often wonder why he’s retiring,” Yankees manager Joe Girardi said. “Gosh, the year he’s having, I would really have to think about coming back. But I’m going to encourage him to retire.”

Ortiz has 53 regular season homers against the Yankees, all but one with Boston. His 31 homers at the old and new ballpark in the Bronx are tied with Mickey Vernon for second-most among visiting players.

When he walked to the plate before flying out to center in the first inning, Ortiz was greeted by a mixture of boos and cheers, with some fans rising to applaud.

Ortiz has been booed at Yankee Stadium since he joined the Red Sox for the 2003 season. But the jeers got more intense as his career progressed and he helped the Red Sox overcome a 3-0 deficit against New York in the 2004 AL Championship Series, then won World Series titles that year and in 2007 and 2013.

“It got more powerful now,” he said. “They know me a little bit more now.”