The Tohoku Rakuten Golden Eagles (東北楽天ゴールデンイーグルス) is a baseball team founded in 2004 to begin play in 2005 in the JapanesePacific League. The team was created to fill the void left by the merger of the Orix Blue Wave and the Kintetsu Buffaloes, who merged at the end of the 2004 season due to financial difficulties, leaving the league short of an even number of teams. The team is to be based in Sendai.
In 2005, the number of professional sports teams based in Sendai suddenly increased to three.
The Tohoku Rakuten Golden Eagles was introduced as a new Pacific League baseball franchise after widely publicized turmoil involving the merger of the Kintetsu Buffaloes and the Orix Blue Wave developed into the first strike in Japanese professional baseball.
Additionally, the Basketball Japan League, which will begin games in November 2005, will include the Sendai 89ers among its first six teams.