Who’s in, who’s out and who may be on the bubble to make the Yankees’ Opening Day roster

The countdown is on.

Today marks 13 days until Yankees pitchers and catchers report to Tampa for spring training and 17 days until their first full-squad workout — with those participating in the World Baseball Classic arriving even sooner.

That means position battles soon will be underway to determine which 26 players the Yankees bring north for Opening Day against the Giants on March 30 in The Bronx.

Though potential injuries in camp could throw a wrench into the Yankees’ best-laid plans — and the possibility of a trade or late free-agent signing still looms — here is our first projection of the 26-man roster before they enter spring training.