Sane got here off the bench before sealing the 3 points for Bayern in a recreation overshadowed via outside occasions, with Frankfurt's stadium lit within the Ukrainian countrywide colorations of blue and yellow.
Electronic symptoms on the ground study "Stop it, Putin!" in a message to Russian President Vladimir Putin.
There changed into a minute's silence, as there have been at other grounds around Germany, before kick-off.
The Bayern team wore black armbands for the sufferers of the conflict at the same time as Munich captain Lewandowski wore a yellow and blue armband.
"I determined to put on the armband this morning, the world can not receive what goes on, we ought to aid Ukraine and the people preventing there," stated Lewandowski.
"I am anti-battle and think what's happening there can't be allowed, it hurts.
"I hope the complete global helps Ukraine - their people are fighting for freedom and I have big appreciate for them."
Frankfurt beat Bayern of their preceding meetings and this turned into a nip and tuck affair till Sane intervened.
"That turned into tough-fought. We should have taken the lead earlier, but the mentality changed into clearly correct -- that was crucial," stated Bayern midfielder Joshua Kimmich.
Just 4 mins after Sane got here on, Kimmich's deft skip through the defence put the winger into area to roll his shot past Frankfurt goalkeeper Kevin Trapp.
