BERLIN (AP) — Bayern Munich is purring in the Bundesliga after a perfect start to the season. Eintracht Frankfurt – arguably the only side that looked capable of challenging the Bavarian powerhouse – lost at Bayer Leverkusen last weekend, leaving a far-from-perfect Borussia Dortmund team and overachieving Cologne and St. Pauli as Bayern’s closest rivals after three rounds. Bayern saw off Chelsea’s challenge in the Champions League on Wednesday to stretch its winning start to five games across all competitions – six including the German Supercup.