Bayern Munich were held to a 1-1 draw at Union Berlin on Saturday, giving defending champions Bayer Leverkusen an outside chance of dragging themselves back into the Bundesliga title race. Bayern, who also dropped points in a surprise loss at home to Bochum last week, could be just six points ahead if Leverkusen win at Stuttgart on Sunday.  “It was a game of two stories: the performance and the result,” said Bayern coach Vincent Kompany. “I’ve been in football long enough to know this wasn’t a bad performance away from home. “Sometimes when you don’t score it’s not because the strikers don’t put it in, it’s because the defenders and the keepers do a lot of things right.” Bayern had most of the ball but struggled to break through a resolute Union defence.  With few chances in the opening period, Bayern’s best chance came after 51 minutes when Harry Kane drilled a free-kick through the wall but into the palms of Frederik Ronnow.  Leroy Sane put the visitors ahead after 75 minutes when …