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Mario Gotze has resigned for Borussia Dortmund.
The Germany international left Dortmund for Bayern Munich in 2013 but he struggled for game time at the Allianz Arena and he has now returned to the Westfalenstadion, signing a four-year deal.
Fans were not happy when Gotze left Dortmund in 2013 but the 24-year-old has bowed to regain their trust.
"When I switched from BVB to Bayern in 2013 that was a conscious decision that I will not hide myself behind today," he told the club's official website.
"Three years later, and at 24, I look with different eyes at my decision. I can well understand that many fans could not understand my decision. I would not even take it today!
"When I return to my home, I want to try to convince all people with my performances - especially those who will not receive me with open arms. My aim is to again play my best football. For all of us, the club and the BVB fans."
Dortmund general manager Hans-Joachim Watzke added: "I'm personally really pleased that Mario has decided to return to Borussia Dortmund.
"I had always hoped when he left here in 2013 that one day he would come back."
Gotze made just 14 Bundesliga appearances for Bayern last season and he was warned he would not play much under new manager Carlo Ancelotti.
"The talks were fair and serious and I would like to thank Borussia Dortmund and Mario, as well as his father and agent," said Bayern chairman Karl-Heinz Rummenigge told the club's official website.
"I think this transfer is a good solution for all parties. Bayern would like to thank Mario for three years in a Bayern shirt and wish him all the best for the future."