Champions League last-16 first leg preview: Viewing guide, predictions and big questions

The Champions League returns this week with eight big games, including Dortmund vs. PSG. We break down all the first-leg action to get you ready.

source http://www.espn.com/soccer/uefa-champions-league/story/4054232/champions-league-last-16-preview-dont-miss-dortmund-vs-psg-pressure-on-man-city-will-liverpool-get-upset