If re-signing Robinson Cano is priority No. 1 for the New York Yankees this offseason, securing the rights to Japanese starter Masahiro Tanaka is No. 1a. And they’re willing to spend more money than any team ever has bidding on a Japanese player. Sources with knowledge of the Yankees’ plans said they are “going to be bold” in bidding on the 25-year-old right-hander when the Rakuten Golden Eagles post him, likely later this month. Just how high the Yankees plan on going is unclear, but executives believe the winning bid for the rights to negotiate a contract with Tanaka will top $75 million, nearly a 50 percent premium over the posting fees for Yu Darvish and Daisuke Matsuzaka. One of the main holdups: Nobody knows what the bidding process even looks like, as Major League Baseball and Nippon Professional Baseball continue to hash out the details of the posting system. In the past, teams have placed blind bids on players, with the highest bid winning exclusive negotiating rights and the Japanese team pocketing the entirety of the bid. Proposals for a new system from MLB seek to limit the money going to Japan and have met resistance from teams that use monster posting fees to recapitalize.