Borussia Dortmund's Turkish playmaking star, Nuri Sahin, will miss the final four games of the German league season with a partially torn ligament after being injured in Dortmund's 3-0 victory over Freiburg on Sunday.

The 22-year-old Turkey international, who has six goals and eight assists for the runaway Bundesliga leader, will be out for an estimated six weeks.

Dortmund leads second-place Bayer Leverkusen by eight points with four games left and could clinch the title as early as this weekend.

in January, Dortmund lost Japan international Shinji Kagawa for the season when he injured his foot at the Asian Cup.