Last season's champions, Bayern Munich have tied with opponents Dortmund. They were now moving into the weekend. But managed a three-point gap - two clear of Saturday's RB Leipzig, early second-placed winners. And, that too despite dangling an effort from Marco Reus. Bayern had lost Joshua Kimmich because of his injury. However, the game was still goalless. Still, they took the game away soon from BVB in a dispassionate fashion and that too on either side of half-time at Signal Iduna Park. David Alaba was the subject of some inspection amidst failed contract negotiations. He was given a prompt riposte to the breakthrough goal. It was before Robert Lewandowski's 19th career strike against Dortmund, a former club. This secured a lead that replacement Leroy Sane extended 10 minutes from a given time.