By now, you probably know that Masahiro Tanaka went 24-0 with a 1.27 ERA for the Rakuten Golden Eagles of Japan's Pacific League. His unbeaten streak of 30 games ended with a loss in Game 6 of the Japan Series -- a game in which he threw 160 pitches -- but he came back the next day to get the save as Rakuten won its first championship.The deadline to sign Tanaka is Friday, and since all medicals will have to be finished by then, the 25-year-old right-hander will probably have to make a decision by Wednesday in order to complete a physical.