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Schalke's nightmare start to the Bundesliga season continued Sunday, losing 3-1 at home to rival Borussia Dortmund.
The fourth straight defeat is Schalke's worst start in the German league.
"It is my worst day at Schalke but it's also one of my worst days in football. I haven't started a season with four losses very often," Schalke coach Felix Magath said. "We never got them under control and Dortmund pounced on us."
Japan international Shinji Kawaga scored twice for Dortmund in the 19th and 58th minutes and Schalke played the last half hour with 10 men as Nicolas Plestan was given his second yellow card.
Robert Lewandowski made it 3-0 for Dortmund in the 86th before Klaas-Jan Huntelaar scored his first goal for Schalke in the 89th.
Dortmund jumped to third place in the league with nine points from four rounds.
"It sounds crazy but we should have scored a lot more goals," Dortmund coach Juergen Klopp said. "But otherwise there is nothing else to complain about."
Dortmund could have scored even more goals. Neven Subotic hit the crossbar in the 12th and Kevin Grosskreutz came close in the 45th.
Earlier Sunday, Hamburg missed a chance to pull into second place in the Bundesliga, coming back to earn a 1-1 draw at St. Pauli.
In the first Bundesliga match between the two teams at Millerntor, promoted St. Pauli played strong defense throughout, limiting Hamburg to very few scoring chances.
Fabian Boll's strong shot from just outside the area gave St. Pauli the lead in the 77th.
But Mladen Petric equalised in the 88th with a powerful left-foot shot to the far right corner.
"(Petric) scores 14 goals every year, that's why we have him," Hamburg goalkeeper Frank Rost said.
Gerald Asamoah made his debut for St. Pauli and set up Boll's goal just three minutes after his substitution.
"We only started to play football after conceding the goal," Petric said.
Hamburg moved to eight points and fifth place while St. Pauli have four points in 10th.
Also Sunday, Bayer Leverkusen played to a scoreless 0-0 draw at home against Nuremberg.
Leverkusen improved to five points for eighth place while Nuremberg has three points in 16th place.
"We just could not break through their defense," Leverkusen midfielder Tranquillo Barnetta said. "They did a good job destroying our game."
Leverkusen striker Stefan Kiessling was injured in the 10th and the German international had to be stretchered off the field and out of the stadium with a left leg injury.
On Saturday, Mainz extended its undefeated Bundesliga streak to a club-record nine games after beating Werder Bremen 2-0 to grab the league lead for the first time.
Mainz is two points ahead of Hoffenheim, which needed a goal by Gylfi Thor Sigurdsson to secure a 2-2 draw at Kaiserslautern.
Also, defending champion Bayern Munich was held to a 0-0 draw at home against Cologne, Pavel Pogrebnyak scored a hat trick as Stuttgart routed Borussia Moenchengladbach 7-0, and 2009 champion Wolfsburg beat Hannover 2-0.
Hoffenheim is second with 10 points while promoted Kaiserslautern has seven.
Bayern Munich has just five points in its worst Bundesliga start in 34 years.
