TAMPA — When the Winter Meetings opened in early December, the possibility of Rob Refsnyder and Dustin Ackley platooning at second base was in the air.

When the Yankees left Nashville, they did so with three-time All-Star Starlin Castro entrenched at second base thanks to a trade that sent Adam Warren to the Cubs for the former shortstop.

Now, as spring training starts, the left-handed hitting Ackley likely will get at-bats at second, but not in a strict platoon.

And Refsnyder? After starting the AL wild-card game at second against Astros lefty Dallas Keuchel — the Yankees lost, 3-0 — he could open the season at Triple-A Scranton/Wilkes-Barre.

“It doesn’t change much,’’ Refsnyder said of Castro joining the Yankees. “Dustin and I are working right now, hoping to get better and help the Yankees win.’’

Refsnyder, who batted .355 (11-for-31) in September and .302 (13-for-43) in 16 games across two big league stints last season, has been working with infield instructor Jody Reed at second base to improve his defense. He he made 18 errors at second base in 107 Triple-A games and one in 15 big league tilts last season.

Though Refsnyder, who will be 25 at the end of March, said he has worked strictly at second base, the Yankees might be wise to see if he can handle third base to offer a backup to Chase Headley. Refsnyder was open to the possibility.

“I’m not sure, I’m up for anything, to be honest,’’ Refsnyder said. “Just a couple of years ago, I was playing right field. I’m up for anything, so we’ll see how it goes.’’

Goose Gossage, Ron Guidry, Orlando “El Duque’’ Hernandez, Reggie Jackson, Hideki Matsui, Lee Mazzilli, Stump Merrill and Willie Randolph have been invited to spring training as guest instructors.