The media learned on September 25 that forty-two-year-old Kazuo Matsui is planning to retire at the end of the season. The Seibu Lions are expected to make some sort of an announcement soon.
Matsui has been limited to twenty-three games this year. He has been traveling with the team since he was taken off the active roster on September 15 to make room for a starting pitcher.
[UPDATE @ 11:21am]
The Lions announced that Matsui is planning to retire at the end of the season. He is scheduled to hold a press conference at MetLife Dome on September 27.