Eight teams have played in the knockout round playoffs so far, and here's what they'll need in the second leg to advance

Manchester City and Real Madrid go head-to-head again in the Champions League on Tuesday, with the eventual loser facing an unusually early exit from European club soccer's most prestigious tournament.

Manchester City vs Real Madrid possible teams A major concern for Carlo Ancelotti heading into the Etihad clash is Madrids defensive crisis. Lucas Vaz