English winger Jadon Sancho starred for Borussia Dortmund on Saturday to help his side beat rivals Bayern Munich 2-0 to win their sixth DFL Super Cup and claim early bragging rights in the curtain raiser for the German Bundesliga. The teenager was the key man, assisting one goal and scoring the other in front of the Dortmund faithful against a Bayern side looking a little lost without departed greats Franck Ribery and Arjen Robben.