PARIS: Paris Saint-Germain warm up for their Champions League last-16 showdown with Chelsea by once again taking on Monaco on Friday, as coach Luis Enrique looked forward to “the best part of the season” starting. PSG have not managed to rediscover the exhilarating form that led them to Champions League glory for the first time in their history last season, but they come into March still on course to retain their French and European titles.