Celtic midfielder Shunsuke Nakamura could be sidelined from the Scottish Premier League club for an extended period with an injury to his left knee, club sources said Tuesday. Nakamura, who missed three consecutive games in September due to the injury, will focus on treatment and abstain from practice until he undergoes a more thorough examination. He failed to make an appearance for the first time at the UEFA Champions League in a 1-0 loss to Benfica last Wednesday.
