Borussia Dortmund have been dealt a major blow with Marco Reus ruled out of Sunday's Revierderby with FC Schalke 04 due to an adductor injury.

The Germany international was taken off at half-time after having scored in Dortmund's UEFA Europa League victory over Qäbälä FK on Thursday, and further medical examination of the problem means Reus will be sidelined for two weeks.

“It's difficult to say exactly what the injury is so soon after the game," Reus, who was replaced by Adnan Januzaj at the break, had told media in the immediate aftermath of Dortmund's 4-0 win at the SIGNAL IDUNA PARK. "I felt a little twinge in the adductors before I scored so we'll just have to wait and see what the diagnosis is tomorrow."

Reus, who had scored five times in his last three Bundesliga appearances, is likely to be available for the Matchday 13 encounter with Hamburger SV on 20 November.