Answer
From 2007 to 2013, Masahiro Tanaka played for the Tohoku Rakuten Golden Eagles of Nippon Professional Baseball. The Golden Eagles are based in Sendai, Miyagi Prefecture, Japan, and they play their home games at Rakuten Stadium Miyagi. Tanaka was a key member of the Golden Eagles during his time with the team, and he helped them win the Japan Series in 2013.