Much of his time on the sidelines coincided with strengthening reports of Sane desiring a move to Munich, and on June 19 Guardiola confirmed the 24-year-old had informed the club he would not be signing an extension to his contract.
However, he missed the majority of this season after suffering a cruciate ligament injury in the Community Shield match against Liverpool in August, making his comeback as a late substitute last week in a 5-0 win over Burnley.
Therefore the deal can be seen as good business for the club who signed the player from Schalke for £37m in 2016.
The 24-year-old has continually been linked with a move back to his homeland which has seen City give up almost any hope of negotiating a new contract after nearly two years of talks with the Germany worldwide. He has scored 25 goals and provided 28 assists in 90 league games for the Etihad Stadium outfit.
Pep Guardiola is said to be the man behind the chase, and it's not only Coman he's keen on at Bayern. "When we make an offer it's because we want him; he's got a special quality that is hard to find". He has other wishes and I understand. But of course we respect (his decision).
"I have nothing against him, he's just decided he wants to make another adventure for his career and he doesn't want to stay".