Leverkusen on Sunday took over from Bayern Munich as Bundesliga leaders for the second week running after blitzing Freiburg with three goals in four minutes on their way to a 3-1 win.
Leverkusen remain the only unbeaten Bundesliga side this season and stunned Freiburg with first-half goals by Germany striker Steffan Kiessling, Swiss forward Eren Derdiyok and ex-Liverpool defender Sammi Hyypia.
Although Bayern picked up their seventh consecutive league win with a 3-0 victory over Mainz on Saturday, Leverkusen went back to the top of the German league and two-points clear after Sunday’s win.
Germany squad member Kiessling remains the league’s top scorer after he bagged his 13th of the season on 36 minutes with a well-taken header.
Then Derdiyok bagged his eighth of the season when he capitalised on a mistake in the Freiburg defence just 60 seconds later for his eighth league goal of the season.
And Hyypia made sure of the win with his second goal in two games when his header beat Freiburg goalkeeper Simon Pouplin five minutes before the half-time whistle.
Defender Felix Bastians then pulled a consolation goal back for Freiburg, but the defeat leaves them 15th in the table, just one off the relegation zone.
Earlier, Stuttgart coach Christian Gross picked up his fourth-straight win and remains undefeated after seven games in charge as his Bundesliga side enjoyed a 4-1 win over Borussia Dortmund.
Goals by Russia forward Pavel Pogrebnyak and Serbian striker Zdravko Kuzmanovic put Stuttgart in charge before Romanian striker Ciprian Marica and Christian Traesch scored late goals to put the result beyond doubt.
The result means the home side have now claimed 12 points from their last four league games with Spanish giants Barcelona beckoning in the Champions League last 16 clash on February 23.
Schalke 04 are third after their 2-0 win over Hoffenheim on Saturday with goals by striker Kevin Kuranyi and midfielder Lukas Schmitz while the defeat leaves Hoffenheim ninth in the table.
Dutch winger Arjen Robben, Germany striker Mario Gomez and defender Daniel van Buyten all scored in Bayern’s win over Mainz in snowy conditions which leaves Bayern second.
Elsewhere, Bremen coach Thomas Schaaf is in a precarious position as his side have now gone seven German league games without a win after they went down 4-3 at midtable Borussia Moenchengladbach.
Second from bottom Nuremberg picked up only their second win in their last 10 games when they won 3-1 at Hanover and the result leaves bottom side Hertha Berlin five points adrift after a scoreless draw with Bochum in the capital.
Cologne are up to 13th after their second consecutive win having beaten Eintracht Frankfurt 2-1.
Defending champions Wolfsburg’s 1-1 draw at Hamburg on Friday leaves the team from the Hanseatic city fifth in the table.