Keisuke Mori, who played for both Tosu and more recently Mito through last season, has announced his retirement.
He appeared in 63 J. League matches, taking 2 goals.
His final comment to the fans:
"I decided to retire following the 2006 season. I have strived in many places in coming to where I am now. With guts I will persevere through the life that comes from now on. Thank you very much."