With just four teams remaining in UEFA Champions League play, soccer fans are bursting with excitement heading into this week's first-leg action.
A.S. Roma will look to ride the momentum from its upset victory over juggernaut Barcelona when the club meets Liverpool for its first semi-final match since 1984.
The other semi-final will see Bayern Munich taking on back-to-back defending champion Real Madrid in what should be a fantastic matchup between two of the most decorated teams in tournament history.
Before the action gets underway, test your Champions League semi-final knowledge here:
