Group G is one of the more convoluted pools heading into the final round of Champions League fixtures.
One we do know is that Leipzig are through and will clinch first place with a draw in France on Tuesday night.
For Lyon, though, things are somewhat more complicated.
The Ligue 1 side will reach the knockout stages if they win (a result which would also see them clinch first place), or if they draw and Zenit lose to Benfica.
With so much at stake already on matchday 6, here's how to follow all the action on Tuesday night...
TV channel and live stream information
The match will be televised live on BT Sport 1 and can be streamed live online via the BT app and website, with kick-off scheduled for 8pm GMT.
You can follow all the action and analysis on Standard Sport's LIVE blog.
Prediction: Lyon 1-1 RB Leipzig
Lyon were victorious in Germany, winning 2-0 back in October, but I suspect their fans could be left disappointed come full time.
