How does it work?Thirty-six sides entered into the new "league phase," and now there are 24 remaining. Eight have already gone through to the round of 16, while sides finishing 9th through 24th are headed to the first knockout round — the playoff.

This week sees the first leg of the Champions League play-offs (see explanations of this format at the end of the article). Here are the matches to be played on Tuesday and Wednesday. Paris Saint-Germain take on Brest today at Stade Francis-Le Blé at 6:45pm (UTC+1).

Almost all Champions League games will be exclusively on Paramount+, with the exception of select games on CBS Sports Network, which you can stream on fuboTV (free trial), DirecTV Stream and Hulu + Live Sports.