Bayern Munich moved above Leipzig at the top of the Bundesliga, 11 days before the top two are due to meet at the Allianz Arena.
Bayern Munich bounced back from defeat to Borussia Dortmund a week ago with a 2-1 win at Bayer Leverkusen to stay second in the Bundesliga.
Cologne and Hertha Berlin both closed the gap on Bayern Munich after their defeat to Borussia Dortmund.
Bayern Munich started the defence of their DFB-Pokal title with a 3-1 win over Augsburg in the second round on Wednesday.
Bayern Munich moved three points clear at the top of the Bundesliga on Saturday after seeing several of their rivals stumble.
Bayern Munich's 100 per cent Bundesliga record was brought to an end by Cologne, who drew 1-1 at the Allianz Arena.