Borussia Dortmund consolidated their place at the top of the Bundesliga with a 5-0 rout of ten-man Freiburg on Saturday.
Bayern Munich's 1-0 win over Wolfsburg at the Allianz Arena means Pep Guardiola's second-placed side remain level on 19 points with Dortmund, but Jurgen Klopp's team have a superior goal difference.
Dortmund ran riot at Signal Iduna Park with Germany winger Marco Reus and Poland striker Robert Lewandowski scoring twice before Polish midfielder Jakub Blaszczykowski added the fifth ten minutes from time.
Dortmund broke the deadlock on 35 minutes when Lewandowski's shot was blocked by Freiburg goalkeeper Oliver Baumann, but Reus was on hand to tap home the loose ball. Freiburg's fortunes took a sharp downturn when Senegalese centre-back Fallou Diagne was sent off after hauling down Lewandowski and Reus drilled home the resulting spot-kick in the 47th minute.
Lewandowski then netted his fourth goal of the season when he held off two defenders to chip the ball over Baumann with half an hour left.
The Poland forward - who has said he will sign a Bayern Munich contract in January with his Dortmund contract to expire in June - then added his second when he converted a Jonas Hoffmann pass on 70 minutes.
Dortmund, who host Marseille in the UEFA Champions League on Tuesday looking to bounce back from their 2-1 defeat at Napoli a fortnight ago, added the fifth when Blaszczykowski pounced on a wayward back pass and fired past Baumann ten minutes before the whistle.
The defeat keeps Freiburg second from bottom and still looking for their first win of the season. Ahead of Wednesday's UEFA Champions League match at Manchester City, Bayern stuttered to a 1-0 win over Wolfsburg.
Elsewhere, Bayer Leverkusen stayed third, just a point behind Dortmund and Bayern, with a 2-0 win at home to Hanover as Germany midfielders Simon Rolfes and Sidney Sam scored first-half goals.
Leverkusen's Sami Hyypia host Real Sociedad in the UEFA Champions League on Wednesday and deserved the win having peppered the Hanover goal with 17 shots compared to the guests' seven.
Ex-Holland boss Bert van Marwijk made his debut as Hamburg coach with a 2-2 draw at Eintracht Frankfurt as the Hanseatic side twice came from behind with Marcell Jansen scoring a late equaliser.
Van Marwijk, who steered Holland to the 2010 FIFA World Cup South Africa™ final, saw Hamburg pick up their first point in three matches to climb out of the bottom three up to 15th.
Schalke, who are at Basel in the UEFA Champions League on Tuesday, were held to a thrilling 3-3 draw at Hoffenheim while Hertha Berlin moved up to fifth after coming from behind to beat Mainz 3-1 in the capital.