Paris Saint-Germain and Bayern Munich advanced to the Champions League knockout stage with wins on Tuesday night, while Chelsea suffered a shock defeat.
Roma went top of Group C after a comprehensive 3-0 dismantling of Chelsea at the Stadio Olimpico courtesy of a Stephan El Shaarawy brace.
The hosts got off to a dream start when a cross into the area glanced off Edin Dzeko's shoulder and bounced right to an onrushing El Shaarawy, who blasted a right-footed shot past Thibaut Courtois for the early lead.
Chelsea saw three good chances go begging in the opening half hour, Cesc Fabregas firing wide from 18 yards, before Eden Hazard shot right at Allison in the Roma goal and Alvaro Morata skied one over the crossbar when left alone at very close range.