Bayern Munich blew Barcelona away with Lucas Hernandez and Leroy Sane scoring at the Allianz in Munich.
French defender Hernandez opened the scoring with a near post header in the 50th minute before Sane clipped home to seal the win shortly after.
Lewandowski had a return to Munich he would want to quickly forget as his profligacy cost the Catalan giants heavily in an entertaining match.
The victory puts Bayern Munich atop of Group C with six points from two games.