Wolfsburg midfielder Koo Ja-Cheol is facing a spell on the sidelines after tearing ligaments in his left ankle during training.

The 22 year-old Korea Republic international suffered the injury yesterday and is set to undergo further tests to determine the extent of the problem.

Koo could be out of action for several weeks though, and is expected to miss Korea Republic's opening FIFA World Cup™ qualifier against Lebanon on 2 September.

It is a further blow for national team coach Cho Kwang-Rae, who has lost Lee Chung-Yong for nine months after the Bolton winger broke his leg in pre-season training.