Much has changed in this season's Champions League, the knockout play-off phase being one major new introduction

It's been a journey into the unknown, but the new-look Champions League is finally reaching the climax of the league phase. Here's what's needed to go through.

Fans are still getting used to the new Champions League format, with the group stage nearing an end and the knockout phase beginning next month. 36 teams have been playing in the group stage as they battle it out to be one of the 24 teams still alive when the knockouts begin.