Five things we learnt from Bundesliga

Borussia Dortmund's second-half collapse saw them yield a four-goal lead in Saturday's 4-4 draw against Schalke while leaders Bayern Munich lost for the first time since Jupp Heynckes returned. Dortmund were stunned as Schalke rallied from 4-0 down on 25 minutes in the Ruhr derby and were booed at the club's annual general meeting on Sunday after six winless games. Bayern lost 2-1 at Moenchengaldbach as Heynckes suffered his first defeat in ten games since replacing Carlo Ancelotti in October. Here are five things we learned in the 13th round of Bundesliga matches:

HISTORIC FIGHT-BACK

Schalke's 4-4 draw at Dortmund was the first time a team has come back from four-nil down in the Bundesliga for 41 years. Bayern are the only other team to manage the feat in the league's history, running out 6-5 winners against VfL Bochum in September 1976 having been 4-0 down on 53 minutes.

Pierre-Emerick Aubameyang, who was sent off in the second half, Mario Goetze and Raphael Guerreiro scored, while Schalke's Benjamin Stambouli netted an own goal, to give Dortmund a huge lead at the break. Guido Burgstaller, Amine Harit and Daniel Caligiuri scored Schalke's second-half goals before Naldo's dramatic 94th-minute equaliser.

TEDESCO'S HALF-TIME PLEA 

With his team 4-0 down, Schalke coach Domenico Tedesco literally bent the knee and goalkeeper Ralf Faehrmann revealed his inspirational half-time words.

"He knelt in front of us and said we had to learn from the game," Faehrmann told German daily Bild.

"We had to wear our hearts on our sleeves and approach the second half as if it were a new game.

"He reminded us that Dortmund were going through a tough spell and if we could get a goal back, things could get nervy for them."

Tedesco said he only believed a draw was possible when Harit's strike made it 4-2 with 25 minutes left.

30 000 INSULTS

Tempers flared at the final whistle as Faehrmann and Dortmund midfielder Nuri Sahin were booked as the teams shoved each other. Faehrmann provoked home fans by pointing to the Schalke logo on his shirt in front of Dortmund's packed south stand, which annoyed Sahin.

"I had been pelted with insults from 30 000 behind me and I let the emotions get the better of me. It was unnecessary and I wish to apologise," Faehrmann explained.

HEAD KNOCKS IN GLADBACH 

A concussed Christoph Kramer famously checked with the referee during the last World Cup final if he really was playing for Germany in the showpiece match of Brazil 2014 which led to him quickly being substituted. The midfielder was stretchered off after 11 minutes having clashed heads with Gladbach team-mate Jannik Vestergaard in the win over Bayern and was diagnosed with a skull contusion. Despite his third head injury this season, Kramer still managed to celebrate with his team-mates at the final whistle. 

Bayern's James Rodriguez was diagnosed with concussion and did not play the second-half after Heynckes revealed the Colombian did not know the half-time score following a bang of heads.

KHEDIRA'S WORLD CUP HOPE

Rani Khedira could be joining elder brother Sami at the World Cup next year as the Augsburg midfielder hopes for a call-up with Tunisia. While Sami, 30, is set to help Germany defend the world title in Russia his sibling hopes to play for their father's homeland.

"There has been contact and playing at a World Cup is very attractive," the 23-year-old Rani told Bild.

"I have told the Tunisian FA that a decision will be made early next year."

From SuperSport