Rakuten Eagles president Yozo Tachibana told a news conference that it has decided to release him through the posting system. Tachinbana said Tanaka's outstanding performance this season meant he deserved to be allowed to move to the U.S.
Tanaka went 24-0 with a 1.27 ERA with the Eagles during the regular season and sought a move the majors but he has two years remaining on his contract and Rakuten was under no obligation to release him.
Posting is now capped at $20 million, and Tanaka can choose from among the teams which meet that price.
