Mario Gotze sidelined with 'metabolic disturbances'

Borussia Dortmund midfielder Mario Gotze has been ruled out of action for the foreseeable future after the cause of his long-term muscle problems was found to be linked to his metabolism.

The 24-year-old Germany international, whose playing time has been restricted to 24 minutes since the start of the year, returned to Dortmund in the summer after spending three years with Bayern Munich.