Alejandro Grimaldo celebrates scoring Leverkusen's third goal against Werder Bremen. -AP
Bayer Leverkusen returned to the top of the Bundesliga following a 3-0 win at Werder Bremen, a record-equalling eighth league victory in a row for Xabi Alonso's side.
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The Spanish coach celebrated his 42nd birthday by leapfrogging Bayern Munich on Saturday, who had temporarily reached the summit on Friday night with a 1-0 success at lowly Cologne, England captain Harry Kane netting his 18th goal in 12 league games.
Leverkusen led inside 10 minutes thanks to Olivier Deman's own goal. Jeremie Frimpong and Alejandro Grimaldo scored either side of halftime.
Third-placed VfB Stuttgart won 2-1 at Eintracht Frankfurt thanks to a double from Deniz Undav, taking his season's tally to seven.
Borussia Dortmund hit back from 2-0 down to prevail 4-2 at home to Borussia Mönchengladbach - all the goals coming in a frantic first half except for Donyell Malen's late clincher - to end a run of three games without a victory and move fourth.
RB Leipzig dropped back after 2-1 loss at Wolfsburg. A huge error by visiting goalkeeper Janis Blaswich, recently called up to the Germany squad for the first time, was reprieved by Yussuf Poulsen's leveller, only for Rogerio to crash home a winner for the hosts.
Union Berlin began life without sacked coach Urs Fischer with a late 1-1 home draw with Augsburg. Union are being led by interim coach Marco Grote and assistant Marie-Louise Eta and the draw was enough to lift them off the bottom of the table.
Kevin Volland's 88th-minute equaliser ended a run of nine straight league defeats.
Freiburg drew 1-1 with Darmstadt in the other game.
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