Leverkusen took the lead on 16 minutes, Kerem Demirbay prodding the ball in after some penalty-box pinball.
Leverkusen 2-3 Freiburg - Highlights
Freiburg moved into top-spot in the Bundesliga following a five goal thriller with Bayer Leverkusen
Yet Freiburg hit back with two quick goals after half time, Matthias Ginter heading in the equaliser from a corner early before Michael Gregoritsch capitalised on a defensive error to turn the game on its head.
Chelsea loanee Callum Hudson-Odoi then set up Patrick Schick with a fine cross just minutes after coming off the bench for his debut, but Ritsu Doan restored Freiburg's lead just a few minutes later.
