TOKYO, Sept 12 (Reuters) - Japan midfielder Daisuke Matsuihas joined Bulgarian first division side Slavia Sofia, the clubsaid. The 31-year-old, who helped Japan reach the last 16 of the2010 World Cup in South Africa, had signed a contract until Junenext year, Sofia said on their official website(www.pfcslavia.com). Matsui made his name in France with Le Mans before spellswith Saint-Etienne, Grenoble and Russia's Tom Tomsk. He returned to France to play for Dijon last year but sawlimited playing time, making just three league appearances, duein part due to injuries. ... More...