Champions League predictions, odds: Expert picks for Real Madrid vs. PSG and Liverpool, Bayern Munich

The four teams will punch their tickets to the last eight of the UEFA Champions League this week

The UEFA Champions League round of 16 second legs begin on Tuesday, as four teams will punch their tickets to the quarterfinals this week. Liverpool and Manchester City are well on their way to the last eight, while the enticing tie between PSG and Real Madrid will be decided on Wednesday at the Estadio Santiago Bernabeu. Liverpool, Bayern Munich, PSG and Manchester City enter these second legs as the favorites to move on, but as always with UCL, anything can happen. Here's what to know and our picks for the matches:

Here are our staff picks for the four big clashes: