Dortmund - Two of the Bundesliga's biggest and most in-form clubs go toe-to-toe in a mouthwatering DFB Cup semi-final clash on Tuesday as Borussia Dortmund host VfL Wolfsburg (kick-off 18:30 GMT/20:30 CEST) for the chance to play in the final in Berlin's Olympiastadion on 17 May.
