​Borussia Dortmund boss Thomas Tuchel admits his side had little chance of beating Bayern Munich after the 4-1 loss against their bitter rivals.

Early goals from Franck Ribery and Lewandowski gave Bayern an early advantage before Raphael Guerreiro halved the deficit. However, Arjen Robben extended the home side's lead after half-time with Lewandowski also netting his second.

Tuchel told ​Dortmund's official website: "All in all, there was no way of competing with Bayern at that level today.

Bayern Muenchen v Borussia Dortmund - Bundesliga

"We started brightly, played very well for the first ten minutes and curiously found ourselves 2-0 down from Bayern's first two shots. 

"That made the task we were facing extremely difficult, especially in view of our personnel situation, and turned the game in a direction that it was more or less impossible to reverse."

Dortmund had their chances throughout the encounter, but were made to pay for their lack of efficiency in front of goal, and Tuchel admitted the derby was over once his side conceded a third goal.

"We continued to perform well enough and pulled a goal back," the 43-year-old added.

Bayern Muenchen v Borussia Dortmund - Bundesliga

"But when we conceded the third the game was all but over. We did have a huge chance to score through Aubameyang, but the ball was hacked away off the line. 

"Overall, we spent a lot of time chasing the ball and no longer had our usual sparkle. The defeat is very bitter."

Tuchel also said that, while Dortmund did not have any luck throughout the match, they deserved to lose heavily.

"Our situation was already complicated enough going into this one, and then the match didn't really go in our favour either. We deserved to lose heavily. We would have needed to be on top form with a fully-fit squad to compete at that level."