FOXSports.com speculates that there are four teams remaining in the Jason Bay sweepstakes this winter.

But an official of one interested club believes that four teams remain involved in the bidding: the Mets, Mariners, Giants and Angels.

And while the Yankees are signaling that they’re not in on Bay — or Matt Holliday, or Johnny Damon — they have been known to shift course rapidly at this time of year.

One source believes the Mariners are attempting to clear payroll in order to make a late push for Bay. But one rival executive doubts Seattle would sign Bay for more than one or two years, since prospects Michael Saunders and Dustin Ackley are candidates to play left field in the long term.

The Angels haven’t ruled themselves out, either. They have watched their own free agents, Chone Figgins and John Lackey, sign elsewhere.

As for the Giants? One person familiar with the organization’s plans said today that it’s “not impossible” to envision them signing Bay or Matt Holliday.

Of the four clubs, the Mariners might make the most sense because Bay grew up north of Seattle and might want to play closer to home. But will they clear enough pay roll in time to scoop him up?

The Mets aren’t afraid to open their wallets, but who knows if they’re be an attractive enough option for Bay in the end. The same goes for the Giants, although I don’t see them spending enough in order to acquire Bay and there have been several reports that state that he doesn’t want to play in San Francisco.

The wild card is the Yankees, who are never out of a deal with their capless payroll. Even though rumor has it that they don’t want to exceed $200 million for their payroll, they’ll stop at nothing to add talent.

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